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OC440LX Motherboard
August 1998 Order Number 702586-001
OC440LX motherboard contain design defects errors known errata which cause product deviate from published specifications. Current characterized errata documented OC440LX Motherboard Specification Update.
Revision History
Revision -001 Revision History First review draft OC440LX Motherboard Technical Product Specification Date August 1998
This product specification applies only standard OC440LX motherboards with BIOS identifier 4O4CL0X0.15A. Changes this specification will published OC440LX Motherboard Specification Update before being incorporated into revision this document.
Information this document provided connection with Intel products. license, express implied, estoppel otherwise, intellectual property rights granted this document. Except provided Intel's Terms Conditions Sale such products, Intel assumes liability whatsoever, Intel disclaims express implied warranty, relating sale and/or Intel products including liability warranties relating fitness particular purpose, merchantability, infringement patent, copyright other intellectual property right. Intel products intended medical, life saving, life sustaining applications. Intel retains right make changes specifications product descriptions time, without notice. OC440LX motherboard contain design defects errors known errata which cause product deviate from published specifications. Current characterized errata available request. Contact your local Intel sales office your distributor obtain latest specifications before placing your product order.
Third party brands names property their respective owners.
Copyright Intel Corporation, 1998. Rights Reserved.
Preface
This Technical Product Specification (TPS) specifies board layout, components, connectors, power environmental requirements, BIOS OC440LX motherboard. describes standard motherboard product available manufacturing options.
Intended Audience
intended provide detailed, technical information about motherboard components vendors, system integrators, other engineers technicians need this level information. specifically intended general audiences.
What this Document Contains
Chapter Description description hardware used this board resources board Features supported BIOS Setup program contents BIOS Setup program's menus submenus description BIOS error messages, beep codes, POST codes listing where find information about specifications supported motherboard
Typographical Conventions
This section contains information about conventions used this specification. these symbols abbreviations appear specifications this type.
Notes, Cautions, Warnings
NOTE
note calls attention important information.
CAUTION
Cautions included help avoid damaging hardware losing data.
WARNING
Warnings indicate conditions which, observed, cause personal injury.
Other Common Notation
(NxnX) Used after signal name identify active-low signal (such USBP0#) When used description component, indicates component type, relative coordinates location motherboard, instance particular part that general location. example, J5J1 connector, located There only such connector that location. Kilobyte (1024 bytes) Kilobit (1024 bits) Megabyte (1,048,576 bytes) Megabit (1,048,576 bits) Gigabyte (1,073,741,824 bytes) address data value ending with lowercase indicates hexadecimal value. Volts. Voltages unless otherwise specified.
Kbit Mbit
Contents
Motherboard Description
Overview Manufacturing Options Motherboard Components Microprocessor.12 1.4.1 Second Level Cache 1.4.2 Microprocessor Upgrades Main Memory.13 Chipset 1.6.1 Intel® 82443LX PAC.14 1.6.2 Intel® 82371EB PIIX4E.15 1.6.3 USB.16 1.6.4 Support 1.6.5 Real-Time Clock, CMOS SRAM, Battery.17 Interface Controller 1.7.1 Serial Port 1.7.2 Parallel Port.18 1.7.3 Diskette Drive Controller 1.7.4 PS/2 Keyboard Mouse Interface.19 Audio Subsystem.19 1.8.1 Creative Labs ES1371 V1.03 Digital Controller.19 1.8.2 Crystal Semiconductor CS4297 V1.03 Analog Codec 1.8.3 Audio Connectors.20 1.8.4 Audio Drivers Utilities Graphics Subsystem 1.9.1 Graphics Controller 1.9.2 Multimedia Channel (AMC) Interface Wake Technology (Optional) Wake Ring.22 Motherboard Connectors 1.12.1 Power Supply Connector.28 1.12.2 Front Panel Connectors 1.12.3 Back Panel Connectors.32 1.12.4 Add-in Board Expansion Connectors.36 Jumper Settings Mechanical Considerations.40 1.14.1 Form Factor 1.14.2 Shield Electrical Considerations 1.15.1 Power Consumption 1.15.2 Power Supply Considerations 1.15.3 Power Supply Support.43 Thermal Considerations.44
1.10 1.11 1.12
1.13 1.14
1.15
1.16
OC440LX Motherboard
1.17 Reliability 1.18 Environmental Specifications.46 1.19 Regulatory Compliance 1.19.1 Product Certification Markings.47
Resource Mapping
Memory Channels Configuration Space Interrupts Interrupt Routing
Overview BIOS Features
Introduction.55 BIOS Flash Memory Organization Resource Configuration 3.3.1 Plug Play: Autoconfiguration.55 3.3.2 Plug Play 3.3.3 Support.56 Desktop Management Interface (DMI).56 Power Management 3.5.1 Advanced Power Management (APM) 3.5.2 Advanced Configuration Power Interface (ACPI).58 BIOS Upgrades 3.6.1 Language Support.60 3.6.2 Logo Scan Area Recovering BIOS Data Boot Options.61 3.8.1 CD-ROM Network Boot 3.8.2 Booting Without Attached Devices Legacy Support 3.10 BIOS Security Features.63
BIOS Setup Program
Maintenance Menu Main Menu.66 Advanced Menu.67 4.3.1 Peripheral Configuration Submenu.68 4.3.2 Configuration.70 4.3.3 Configuration Submenus 4.3.4 Floppy Options Submenu.72 4.3.5 Event Logging.72 4.3.6 Video Configuration Submenu.72 4.3.7 Resource Configuration Submenu.73 Security Menu Power Menu
Contents
Boot Menu 4.6.1 Hard Drive Submenu.75 4.6.2 Removable Devices Submenu Exit Menu BIOS Error Messages.77 Port POST Codes.79 BIOS Beep Codes Online Support Specifications Motherboard Components Motherboard Connectors Front Panel Connectors Back Panel Connectors Location Configuration Jumper Block Motherboard Dimensions.40 Back Panel Shield Dimensions (microATX Chassis-Dependent) Back Panel Shield Dimensions (microATX Chassis-Independent) Thermally-Sensitive Components Video Resolutions, Color Depth, Refresh Rate ATAPI CD-ROM Connector (J2C2) Audio Line Connector (ATAPI-style) (J2C1) Telephony Connector (ATAPI-style) (J1C1).24 Connector (J4J1).24 Connector (J5J1).24 Diskette Drive Connector (J10F1).25 Connectors (J9D1, J9D2) Connector (J7F1).27 Wake Technology Connector (J4A1) (Optional).27 Wake Ring Connector (J3A2) Power Supply Connector (J7H1) Front Panel Connectors (J10D1) Power PS/2 Keyboard/Mouse Connectors.33 Stacked Connectors Serial Port Connector Video Connector.34 Parallel Port Connector.34 MIDI/Game Port Connector Audio Line Connector Audio Line Connector
Error Messages Beep Codes
Specifications Customer Support
Figures
Tables
OC440LX Motherboard
Audio Connector Connectors Connector Configuration Jumper Settings Power Usage.43 Thermal Considerations Components Environmental Specifications.46 Safety Regulations Regulations.47 Memory Channels Configuration Space Interrupts Interrupt Routing Flash Memory Organization.55 Effects Pressing Power Switch Power States Targeted System Power Wake Devices Events Supervisor User Password Functions Setup Menu Setup Function Keys Maintenance Menu Main Menu.66 Advanced Menu.67 Peripheral Configuration Submenu.68 Configuration Configuration Submenus Floppy Options Submenu Event Logging Submenu.72 Video Configuration Submenu Resource Configuration Submenu.73 Security Menu Power Menu Boot Menu Hard Drive Submenu Removable Devices Submenu.76 Exit Menu BIOS Error Messages.77 Port Codes Beep Codes.84 Compliance with Specifications
viii
Motherboard Description
Overview
OC440LX motherboard following features: microATX form factor inches Microprocessor: Support single Pentium® Intel® Celeronprocessor host speed Slot connector Main memory: 168-pin dual inline memory module (DIMM) sockets Supports synchronous DRAM (SDRAM) Intel® 82440LX AGPset PCI/IDE Interface: Intel® 82443LX PCI/AGP controller (PAC) Integrated mastering controller Integrated Accelerated Graphics Port (AGP) interface Intel® 82371EB Xcelerator (PIIX4E) Multifunction PCI-to-ISA bridge Universal Serial (USB) controllers fast interfaces that support four drives devices Power management logic Real-time clock features: FDC37M707QFP controller ports Three expansion slots: slots shared (ISA/PCI) slot audio subsystem: Creative Labs ES1371 V1.03 digital controller Crystal Semiconductor CS4297 V1.03 analog codec
OC440LX Motherboard
Graphics subsystem Rage Turbo graphics controller SGRAM (graphics memory) DDC2B Compliant Other features: Intel/Phoenix BIOS Mbit flash memory) Plug Play compatible Single-jumper configuration Advanced Power Management (APM) support Advanced Configuration Power Interface (ACPI) support Wake Ring connector Media Channel (AMC) connector Software drivers utilities available from Intel.
Manufacturing Options
following manufacturing options. manufacturing options available marketing channels. Please contact your Intel representative determine what manufacturing options available you. Wake technology connector
Motherboard Description
Motherboard Components
OM08398
ATAPI CD-ROM connector Audio Line connector (ATAPI-style) Telephony connector (ATAPI-style) Back panel connectors Slot connector connector (for variable speed fan) Intel 82443LX PCI/AGP controller connector (for "always fan) DIMM sockets Power supply connector Rage Turbo graphics controller Graphics memory FDC37M707QFP controller
Piezoelectric speaker connectors Diskette drive connector Media Channel (AMC) connector Configuration jumper block Front panel connector Flash memory Battery Intel 82371EB Xcelerator (PIIX4E) Wake Ring connector Creative Labs ES1371 digital controller slot slots
Figure Motherboard Components
OC440LX Motherboard
Microprocessor
motherboard supports single Pentium Celeron processor with host bus. processor's pins automatically program voltage regulator motherboard required processor voltage. processor connects motherboard through Slot connector, 242-pin edge connector. processor must secured retention mechanism attached motherboard.
NOTE
Information regarding specific retention mechanism processor installed computer available from Intel. motherboard supports following processor configurations:
Processor Type Pentium Processor Speed 300A Cache Size None None Package Type S.E.C. cartridge
Celeron
S.E.P. package
1.4.1
Second Level Cache
second level cache Pentium processor located substrate S.E.C. cartridge. cache includes synchronous pipelined burst static (PBSRAM) RAM. supported onboard memory cached. Celeron 300A processors include integrated second level cache subsystem, implemented processor die. supported onboard memory cached. Celeron processors operating have second level cache.
1.4.2
Microprocessor Upgrades
motherboard upgraded with processors that higher speeds. When upgrading processor, configure mode change processor speed (see Section 1.13).
Motherboard Description
Main Memory
motherboard DIMM sockets. SDRAM installed both sockets. motherboard supports only DIMMs with serial presence detect (SPD) data structures. Using data structure, programmed into E2PROM DIMM, BIOS determine SDRAM's size speed. Minimum memory size maximum memory size Memory size vary between sockets. motherboard supports following memory features: 168-pin DIMMs with gold-plated contacts MHz, Clock SDRAM 64-bit memory (non-error checking correcting) memory only Unbuffered single- double-sided DIMMs following sizes:
DIMM Size Configuration Mbit Mbit Mbit Mbit Mbit
NOTE
memory components DIMMs used with OC440LX motherboard must comply with SDRAM specifications. These include SDRAM Specification (memory component specific) Unbuffered DIMM Specification. When using DIMM with data structure, DIMM must comply with Serial Presence Detect Specification. access these documents through Internet Section information about these specifications.
OC440LX Motherboard
Chipset
Intel® 440LX AGPset includes Host-PCI bridge integrated with both optimized DRAM controller interface. subsystem 440LX based PIIX4E, which highly integrated PCI-ISA/IDE Accelerator Bridge. This chipset consists Intel 82443LX Intel 82371EB PIIX4E bridge chip.
1.6.1
Intel® 82443LX
Intel 82443LX provides bus-control signals, address paths, data paths transfers between processor's host bus, bus, AGP, main memory. features: Processor interface control Processor host speed 32-bit addressing GTL+ compliant host Integrated DRAM controller Support synchronous DRAM (SDRAM) 64-bit path-to-memory Auto detection memory type Support 16-, 64-Mbit DRAM devices Symmetrical asymmetrical DRAM addressing Support DRAMs Accelerated Graphics Port Interface Compliance with A.G.P. specification (see Section specification information) Support A.G.P. devices with data transfer rates Synchronous coupling host-bus frequency Fully-synchronous interface Compliance with specification (see Section specification information) PCI-to-DRAM access greater than MB/sec Support five masters addition host PCI-to-ISA bridge Delayed transactions parity checking generation support Data Buffering Host-to-DRAM, PCI-to-DRAM, A.G.P.-to-DRAM write-data buffering Write-combining host-to-PCI burst writes Supports concurrent host, PCI, A.G.P. transactions main memory Support system management mode (SMM)
Motherboard Description
1.6.2
Intel® 82371EB PIIX4E
Intel 82371EB PIIX4E multifunction device implementing PCI-to-ISA bridge, functionality, host/hub functionality, enhanced power management. PIIX4E features: Multifunction PCI-to-ISA bridge Support Complies with specification (see Section specification information) support controller ports (see Section specification information) Support legacy keyboard mouse Support UHCI interface Integrated dual-channel enhanced interface Support four devices Mode transfers MB/sec Support Ultra DMA/33 synchronous mode transfers MB/sec master mode with 32-bit buffer master burst transfers Enhanced controller 8237-based controllers Support with three PC/PCI channels distributed protocols Interrupt controller based 82C59 Support interrupts Programmable edge/level sensitivity Power management logic Sleep/resume logic Support Wake Ring, Wake technology, Wake power management enabled (PME) Support ACPI (see Section specification information) Real-Time Clock 256-byte battery-backed CMOS SRAM Includes date alarm 16-bit counters/timers based 82C54
OC440LX Motherboard
1.6.3
motherboard ports; peripheral connected each port. more than devices, external connected either port. motherboard fully supports universal host controller interface (UHCI) uses UHCI-compatible software drivers. Section information about specification. features include: Self-identifying peripherals that plugged while computer running Automatic mapping function driver configuration Support isochronous asynchronous transfer types over same wires Support physical devices Guaranteed bandwidth latencies appropriate telephony, audio, other applications Error-handling fault-recovery mechanisms built into protocol
NOTE
Computer systems that have unshielded cable attached port meet Class requirements, even device low-speed device attached cable. shielded cable that meets requirements full-speed devices.
1.6.4
Support
motherboard independent bus-mastering interfaces. These interfaces support: ATAPI devices (such CD-ROM drives) devices using these transfer modes Mode Mode Ultra DMA/33 synchronous-DMA mode BIOS supports logical block addressing (LBA) extended cylinder head sector (ECHS) translation modes. BIOS automatically detects device transfer rate translation mode. motherboard also supports laser servo (LS-120) drives. LS-120 technology allows user perform read/write operations LS-120 (120 conventional 1.44 diskettes. optical servo system used precisely position dual-gap head access diskette's 2,490 tracks inch (tpi) containing data storage. conventional diskette uses 1.44 data storage. LS-120 drives ATAPI-compatible connect motherboard's interface. (LS-120 drives also available with SCSI parallel port interfaces.) Some versions Windows Windows Windows operating systems recognize LS-120 drive bootable device both 1.44 mode. Connection LS-120 drive standard 3.5-inch diskette drive allowed. LS-120 drive configured boot device selected Drive BIOS setup program.
Motherboard Description
NOTE
connect LS-120 drive connector configure "boot" drive configure standard 3.5-inch diskette drive drive, standard diskette drive seen operating system. When LS-120 drive configured "boot" device, system will recognize both drive.
1.6.5
Real-Time Clock, CMOS SRAM, Battery
real-time clock compatible with DS1287 MC146818 components. clock provides time-of-day clock multicentury calendar with alarm features century rollover. realtime clock supports bytes battery-backed CMOS SRAM banks that reserved BIOS use. time, date, CMOS values specified Setup program. CMOS values returned their defaults using Setup program.
NOTE
recommended method accessing date systems with Intel motherboards indirectly from Real Time Clock (RTC) BIOS. BIOS Intel motherboards baseboards contains century checking maintenance feature that checks least significant digits year stored during each BIOS request (INT 1Ah) read date and, less than (i.e., 1980 first year supported PC), updates century byte This feature enables operating systems applications using BIOS date/time services reliably manipulate year four-digit value. more information proper date access systems with Intel motherboards please coin-cell battery powers real-time clock CMOS memory. When computer plugged into wall socket, battery estimated life three years. When computer plugged standby current from power supply extends life battery. clock accurate minutes/year with applied.
OC440LX Motherboard
Interface Controller
motherboard uses FDC37M707QFP controller which features: Single diskette drive interface Plug-and-Play compatible register serial port FIFO support both serial floppy interfaces parallel port with Extended Capabilities Port (ECP) Enhanced Parallel Port (EPP) support PS/2 style mouse keyboard interfaces Intelligent auto power management, including: Shadowed write-only registers ACPI compliance Programmable wake-up event interface BIOS Setup program provides configuration options controller.
1.7.1
Serial Port
motherboard 9-pin D-Sub serial port connector located back panel. serial port's NS16C550-compatible UARTs support data transfers speeds 115.2 Kbits/sec with BIOS support. serial port assigned COM1 (3F8), COM2 (2F8), COM3 (3E8), COM4 (2E8).
1.7.2
Parallel Port
connector multimode bi-directional parallel port 25-pin D-Sub connector located back panel motherboard. Setup program, there four options parallel port operation: Compatible (standard mode) Bi-directional (PS/2 compatible) Bi-directional EPP. driver from peripheral manufacturer required operation. Section compatibility. Bi-directional high-speed
1.7.3
Diskette Drive Controller
controller software compatible with 82077 diskette drive controller supports single diskette drive both PC-AT PS/2 modes. Setup program, diskette drive interface configured following diskette drive capacities sizes: 5.25-inch 5.25-inch 3.5-inch 3.5-inch (driver required) 1.25/1.44 3.5-inch 2.88 3.5-inch
Motherboard Description
1.7.4
PS/2 Keyboard Mouse Interface
PS/2 keyboard mouse connectors located back panel motherboard. lines these connectors protected with PolySwitch circuit that, like self-healing fuse, reestablishes connection after over-current condition removed.
NOTE
mouse keyboard plugged into either PS/2 connector. Power computer should turned before keyboard mouse connected disconnected. keyboard controller contains code which provides traditional keyboard mouse control functions, also supports Power On/Reset password protection. Power On/Reset password specified BIOS Setup program.
Audio Subsystem
OC440LX motherboard includes Audio Codec '97) compatible audio subsystem, features which include: Split digital/analog architecture improved (signal-to-noise) ratio: measured line out, from analog input, including line CD-ROM, auxiliary line video (stereo audio from video source) Ensoniq positional audio support Power management support 1.2, ACPI 1.0, Audio inputs: analog line-level stereo inputs connection from line CD-ROM audio analog line-level input telephony (speakerphone input) mono microphone input (Mic) Audio outputs: Stereo line-level output Mono output speakerphone audio subsystem consists these devices: Creative Labs ES1371 V1.03 digital controller Crystal Semiconductor CS4297 V1.03 analog codec
1.8.1
Creative Labs ES1371 V1.03 Digital Controller
compliant master audio voice software wavetable Aureal API, Sound Blaster Pro, Roland MIDI, joystick compatible Ensoniq positional audio Microsoft DirectSound support
1.8.2
Crystal Semiconductor CS4297 V1.03 Analog Codec
stereo full-duplex codec Fixed sampling rate
OC440LX Motherboard
1.8.3
Audio Connectors
audio connectors include following: Back panel connectors: stereo line-level output (line out), stereo line-level input (line in), ATAPI CD-ROM audio connector (black) Telephony connector (green) audio line connector (natural off-white) Section 1.12 location pinouts audio connectors.
1.8.3.1
CD-ROM Audio Connector
4-pin ATAPI-style connector (J2C2) used connect internal CD-ROM drive audio mixer.
1.8.3.2
Telephony Connector
4-pin ATAPI-style connector (J1C1) connects monaural audio signals internal telephony device audio subsystem. monaural audio-in audio-out signal interface necessary telephony applications such speakerphones, faxmodems, answering machines.
1.8.3.3
Audio Line Connector
4-pin ATAPI-style line connector (J2C1) connects left right channel signals internal audio device audio subsystem. audio-in signal interface this type necessary applications such tuners.
1.8.4
Audio Drivers Utilities
Audio software utilities available from Intel's World Wide site (see Section 6.1).
Graphics Subsystem
graphics subsystem features Rage Turbo Graphics drivers available from Intel's World Wide site (see Section 6.1).
1.9.1
Graphics Controller
Rage Turbo provides following features: Support operating MB/s throughput data transfer rate) Multistream video video conferencing Filtered scaling that enhances playback quality Enhanced line buffer allows vertical filtering native MPEG-2 size (720 480) images DVD/MPEG-2 decode assist Filter circuitry that eliminates video artifacts caused displaying interlaced video noninterlaced displays Bi-directional mastering engine with planar YUV-to-packed format converter
Motherboard Description
color space converter with support both packed planar YUV: 4:2:2, 4:1:0, 4:2:0 16/15, monochrome Triple 8-bit palette with gamma correction. Pixel rates Supports DDC1 DDC2B+ Plug Play monitors SGRAM motherboard
Table shows relationship between video resolutions, color depth, refresh rates.
Table Video Resolutions, Color Depth, Refresh Rate Maximum Refresh Rate (Hz)
Resolution 1024 1152 1280 1024 1600 1200 colors local SGRAM) 16.7M colors local SGRAM)
1.9.2
Multimedia Channel (AMC) Interface
graphics subsystem includes 40-pin shrouded stake connector interfacing addin graphics/video cards with controller. 16-bit bi-directional video port that enables direct connection video upgrades such Video capture/video conferencing capability Hardware MPEG-2/DVD player tuner with Intercast support interface ImpacTV chip
OC440LX Motherboard
1.10 Wake Technology (Optional)
Wake technology enables remote wakeup computer through network. Wake technology requires add-in network interface card (NIC) with remote wakeup capabilities. remote wakeup connector must connected onboard Wake technology connector. monitors network traffic interface; upon detecting Magic Packet, asserts wakeup signal that powers computer. access this feature Wake technology connector, which 3-pin connector located J4A1 motherboard. Section 1.12 location pinouts Wake technology connector.
CAUTION
Wake LAN, standby line power supply must capable delivering Failure provide adequate standby current when implementing Wake LAN, damage power supply.
1.11 Wake Ring
Wake Ring enables computer wake from sleep soft-off mode when call received telephony device, such faxmodem, configured operation COM1. first incoming call powers computer. second call must made access computer. access this feature Wake Ring connector, which 2-pin connector located J3A2 motherboard. Section 1.12 location pinouts Wake Ring connector.
Motherboard Description
1.12 Motherboard Connectors
Figure shows location motherboard connectors.
ATAPI CD-ROM (J2C2) Audio Line (ATAPI-style) (J2C1) Telephony (ATAPI-style) (J1C1) Slot (J4F1) (J4J1) (J5J1) DIMMs (J6F1, J6F2) Power supply (J7H1)
OM08400
Diskette drive (J10F1) Front panel (J10D1) Primary secondary (J9D1, J9D2) (J7F1) Wake Ring (J3A2) slot (J4A2) slots (J4C1, J4B1, J4A3)
Figure Motherboard Connectors
OC440LX Motherboard
Table
ATAPI CD-ROM Connector (J2C2)
Signal Name CD_IN-Left Ground Ground CD_IN-Right
Table
Audio Line Connector (ATAPI-style) (J2C1)
Signal Name Left Line Ground Ground Right Line (monaural)
Table
Telephony Connector (ATAPIstyle) (J1C1)
Signal Name Audio (monaural) Ground Ground pre-amp modem)
Table
Connector (J4J1)
Signal Name Ground FAN_CTRL (+12 connect
Table
Connector (J5J1)
Signal Name Ground Ground
Motherboard Description
Table
Diskette Drive Connector (J10F1)
Signal Name Ground Ground Ground Ground Ground Ground Ground Connect Ground Ground Ground Ground Connect Ground Ground Ground Signal Name DENSEL Connect FDEDIN FDINDX# (Index) FDM00# (Motor Enable connect FDDS0# (Drive Select connect FDDIR# (Stepper Motor Direction) FDSTEP# (Step Pulse) FDWD# (Write Data) FDWE# (Write Enable) FDTRK0# (Track FDWPD# (Write Protect) FDRDATA# (Read Data) FDHEAD# (Side Select) DSKCHG# (Diskette Change)
OC440LX Motherboard
Table
Connectors (J9D1, J9D2)
Signal Name Reset Data Data Data Data Data Data Data Data Ground DDRQ0 [DDRQ1] Write# Read# IOCHRDY DDACK0# [DDACK1#] [IRQ Address Address Chip Select [Chip Select 1S#] Activity# Signal Name Ground Data Data Data Data Data Data Data Data Ground Ground Ground Ground Ground Reserved Reserved Address Chip Select [Chip Select 3S#] Ground
NOTE: Signal names brackets secondary connector.
Motherboard Description
Table
Connector (J7F1)
Signal Name Ground Ground Ground EVIDEO ESYNC EDCLK Ground Ground Ground VFCSNS SAD6 SAD4 Ground Signal Name VFC_D0 VFC_D1 VFC_D2 VFC_D3 VFC_D4 VFC_D5 VFC_D6 VFC_D7 DCLK BLANK HSYNC VSYNC Ground SAD3 SAD7 SAD5 AMCREV +12V
Table
Wake Technology Connector (J4A1) (Optional)
Signal Name Ground
Table
Wake Ring Connector (J3A2)
Signal Name Ground RINGA#
OC440LX Motherboard
1.12.1
Power Supply Connector
When used with ATX-compliant power supply that supports remote power on/off, motherboard turn system power through software control. Section information about specification. enable soft-off control software, advanced power management must enabled Setup program operating system. When system BIOS receives correct command from operating system, BIOS turns power computer. power computer interrupted power outage disconnected power cord, when power resumes, computer returns power state before power interrupted off). addition, motherboard supports small form factor power supplies. power supply uses same connector power supply, does provide motherboard. more information about specification, Section 6.2.
Table
Power Supply Connector (J7H1)
Signal Name +3.3 +3.3 Ground Ground Ground PWRGD (Power Good) Signal Name +3.3 Ground PS-ON# (power supply remote on/off control) Ground Ground Ground
Motherboard Description
1.12.2
Front Panel Connectors
front panel connectors includes connections following: Reset switch Power Hard drive activity Power switch Infrared module
J10D1
OM08401
Figure Front Panel Connectors
OC440LX Motherboard
Table lists signal name corresponding description front panel connector pins.
Table Front Panel Connectors (J10D1)
Signal Name HD_PWR HAD# FP_RESET# IRRX IRTX IrDA serial input Ground IRDA serial output connected In/Out Description Signal Name HDR_BLNK_ HDR_BLNK_ SW_ON# FPSLP# (pin removed) In/Out Description Front panel green Front panel yellow Front panel On/Off button Ground Front panel Sleep button Ground connected power connected
Hard disk pullup (330 Hard disk active Ground Front panel Reset button
1.12.2.1
Hard Drive Connector
Pins connected provide visual indicator that data being read from written hard drive. function properly, drive must connected onboard hard drive controller.
1.12.2.2
Power Connector
Pins connected dual colored that will light when computer powered Table shows possible states this LED.
Table
State Steady Green Blinking Green Steady Yellow Blinking Yellow
Power
Description Running Running message waiting (Note) Sleeping Sleeping message waiting (Note)
Note: utilize message waiting function, OnNow Instantly Available aware message capturing software application must invoked.
1.12.2.3
Power Switch Connector
Pins connected front panel power switch. switch must pull SW_ON# ground least signal power supply switch off. least seconds must pass before power supply will recognize another on/off signal. (The time requirements internal debounce circuitry motherboard.)
Motherboard Description
1.12.2.4
Reset Switch Connector
Pins connected momentary SPST type switch that normally open. When switch closed, motherboard resets runs POST.
1.12.2.5
Infrared Module Connector
Pins connected IrDA module. After IrDA interface configured, files transferred from portable devices such laptops, PDAs, printers using application software.
OC440LX Motherboard
1.12.3
Back Panel Connectors
Figure shows location back panel connectors.
OM08402
PS/2 keyboard mouse PS/2 keyboard mouse Port Port Serial Port Parallel Port
Video MIDI/Game Port Audio Line Audio Line Audio
Figure Back Panel Connectors
Motherboard Description
Table
PS/2 Keyboard/Mouse Connectors
Signal Name Data connect Ground (fused) Clock connect
Table
Stacked Connectors
Signal Name Power USBP0# [USBP1#] USBP0 [USBP1] Ground
Signal names brackets Port
Table
Serial Port Connector
Signal Name Serial Serial DTR# Ground Signal Name
OC440LX Motherboard
Table
Video Connector
Signal Name GREEN BLUE Connect Ground Ground Ground Ground Fused Ground Connect MONID1 HSYNC VSYNC MONID2
Table
Parallel Port Connector
Signal Name Strobe# Data Data Data Data Data Data Data Data ACK# Busy Error Select Signal Name Auto Feed# Fault# INIT# SLCT Ground Ground Ground Ground Ground Ground Ground Ground
Motherboard Description
Table
MIDI/Game Port Connector
Signal Name (fused) (JSBUTO) (JSX1R) Ground Ground (JSY1R) (JSBUT1) (fused) Signal Name (fused) (JSBUT2) (JSX2R) MIDI-OUTR (JSY2R) (JSBUT3) MIDI-INR
Table
Sleeve Ring
Audio Line Connector
Signal Name Ground Audio Left Audio Right
Table
Sleeve Ring
Audio Line Connector
Signal Name Ground Audio Left Audio Right
Table
Sleeve Ring
Audio Connector
Signal Name Ground Mono Electret Bias Voltage
OC440LX Motherboard
1.12.4
Add-in Board Expansion Connectors
There three expansion slots motherboard: slots shared (ISA/PCI) slot. supports three additional masters through three connectors (see Section information about compliance with specification).
Table
Connectors
Signal Name Ground (TCK)* Ground connect (TDO)* INTB# INTD# Reserved Ground Ground Reserved Ground Ground REQ# (I/O) AD31 AD29 Ground AD27 AD25 +3.3 C/BE3# AD23 Ground AD21 AD19 +3.3 Signal Name AD16 +3.3 FRAME# Ground TRDY# Ground STOP# +3.3 (SDONE)* (SBO#)* Ground AD15 +3.3 AD13 AD11 Ground AD09 C/BE0# +3.3 AD06 AD04 Ground AD02 AD00 (I/O) REQ64C# Signal Name AD17 C/BE2# Ground IRDY# +3.3 DEVSEL# Ground LOCK# PERR# +3.3 SERR# +3.3 C/BE1# AD14 Ground AD12 AD10 Ground AD08 AD07 +3.3 AD05 AD03 Ground AD01 (I/O) ACK64C#
Signal Name Ground (TRST#)* (TMS)* (TDI)* INTA# INTC# Reserved (I/O) Reserved Ground Ground +3.3 RST# (I/O) GNT# Ground PME# AD30 +3.3 AD28 AD26 Ground AD24 IDSEL +3.3 AD22 AD20 Ground AD18
connect (PRSNT1#)* connect (PRSNT2#)*
These signals parentheses) optional specification currently implemented.
Motherboard Description
Table
Connector
Signal Name Ground RESET (RESDRV) IRQ9 DRQ2 SRDY# (NOWS#) Ground SMEMW# (SMWTC#) SMEMR# (SMRDC#) IOW# (IOWC#) IOR# (IORC#) DACK3# DRQ3 DACK1# DRQ1 REFRESH# BCLK IRQ7 IRQ6 IRQ5 IRQ4 IRQ3 DACK2# BALE Ground MEMCS16# (M16#) IOCS16# (IO16#) IRQ10 SBHE# LA23 LA22 continued Signal Name IOCHK# (IOCHCK#) IOCHRDY (CHRDY) SA19 SA18 SA17 SA16 SA15 SA14 SA13 SA12 SA11 SA10
OC440LX Motherboard
Table
Connector (continued)
Signal Name IRQ11 IRQ12 IRQ15 IRQ14 DACK0# DRQ0 DACK5# DRQ5 DACK6# DRQ6 DACK7# DRQ7 Master16# (MASTER#) Ground Signal Name LA21 LA20 LA19 LA18 LA17 MEMR# (MRDC#) MEMW# (MWTC#) SD10 SD11 SD12 SD13 SD14 SD15
Items parentheses alternate versions signal names. power supply installed your computer, will present connector.
Motherboard Description
1.13 Jumper Settings
motherboard single jumper block location J8E1. 3-pin jumper block enables motherboard configuration done Setup. Figure shows location configuration jumper block. Table describes jumper settings normal, configure, recovery modes.
OM08403
J8E1
Figure Location Configuration Jumper Block Table
Function Normal Configure Recovery
Configuration Jumper Settings
Jumper J8E1 none Configuration BIOS uses current configuration information passwords booting. After POST runs, Setup runs automatically. maintenance menu displayed. BIOS attempts recover BIOS configuration. recovery diskette required.
CAUTION
move jumper with power Always turn power unplug power cord from computer before changing jumper.
OC440LX Motherboard
1.14 Mechanical Considerations
1.14.1 Form Factor
motherboard designed into microATX form-factor chassis. outer dimensions inches. (The maximum dimensions microATX form factor inches.) Figure shows that mechanical form factor, connector locations, mounting hole locations compliance with microATX specification (see Section information about microATX specification).
NOTE
additional support point (mounting hole) required standard chassis OC440LX motherboard fully microATX compatible. Section information about microATX specification.
9.35 8.95 8.05
2.85 Additional Support Point
0.25
0.00
0.55 8.25
0.00
1.80
8.00
OM08399
Figure Motherboard Dimensions
Motherboard Description
1.14.2
Shield
back panel shield motherboard must meet specific dimension material requirements. Systems based this motherboard need back panel shield pass certification testing. Figure shows critical dimensions chassis-dependent shield. Figure shows critical dimensions chassis-independent shield. Both figures indicate position each cutout. Additional design considerations shields relative chassis requirements described microATX specification. dimensions back panel shield microATX form factor identical dimensions form factor. Section information about microATX specification.
NOTE
shield specifically designed Intel® microATX chassis available from Intel.
4.610
0.133
0.200
1.590 0.295
0.478 1.955 1.407
0.458 0.768 1.158
0.597
0.671 0.395 0.553 0.990 1.911 2.184 3.327 4.735 4.899 5.391 5.883 6.533 0.193
0.652
0.306
0.666
0.120
2.326 2.055 2.023
Left-end View
Note: Material 0.010 ±.0.001 Thick Stainless Steel, Half Hard
0.050
OM05669
Figure Back Panel Shield Dimensions (microATX Chassis-Dependent)
OC440LX Motherboard
NOTE
chassis-independent shield designed compliant with microATX chassis specification 2.01 available from Intel.
0.039 0.945
0.279 0.00 0.464 0.472 0.685 0.945 0.464 0.306
0.134 0.00
0.442
0.911
1.798
2.070
3.214
4.618
4.783
5.275
5.767
1.889
Note: Material 0.010 -.0.001 Thick Stainless Steel, Half Hard
1.767
Right-end View
0.122
OM05734
Figure Back Panel Shield Dimensions (microATX Chassis-Independent)
6.255
Motherboard Description
1.15 Electrical Considerations
1.15.1 Power Consumption
Table lists power usage computer that contains motherboard with Celeron processor, SDRAM, 3.5-inch floppy drive, hard drive, CD-ROM, integrated Rage Turbo with video memory, integrated Creative Labs ES1371 digital controller. This information provided only guide calculating approximate power usage with additional resources added. Values Windows desktop mode were measured colors refresh rate. watts measured with typical supply, nominal input voltage frequency, with true wattmeter line input.
Table
Mode prompt, disabled Windows desktop, disabled Windows desktop, enabled,
Power Usage
(watts) Wall Outlet
1.15.2
Power Supply Considerations
System integrators should refer power usage values listed Table when selecting power supply with this motherboard. power supply must comply with following recommendations found indicated sections form factor specification (see Section 6.2). potential relation between power rails (Section 4.2) current capability line (Section 4.2.1.2) timing parameters (Section 4.2.1.3) voltage tolerances (Section 4.2.2)
1.15.3
Power Supply Support
motherboard supports small form factor power supplies. power supply uses same connector power supply, does provide motherboard. more information about specification, Section 6.2.
OC440LX Motherboard
1.16 Thermal Considerations
Table lists maximum component case temperatures motherboard components that could sensitive thermal changes. Case temperatures could affected operating temperature, current load, operating frequency. Maximum case temperatures important when considering proper airflow cool motherboard.
CAUTION
ambient temperature that exceeds board's maximum operating temperature might cause components exceed their maximum case temperature. information about maximum operating temperature, environmental specifications Section 1.18.
Table Thermal Considerations Components
Maximum Case Temperature
Component Pentium processor
Motherboard Location J4F1 (Slot connector)
(thermal plate) (thermal plate) (thermal plate) (thermal plate)
Celeron processor Intel 82443LX (PAC) Rage Turbo Intel 82371EB (PIIX4E) Crystal Semiconductor CS4297
J4F1 (Slot connector) U5F1 U8F1 U8B4 U2A1
Motherboard Description
Figure shows motherboard components that sensitive thermal changes.
OM08404
Processor Slot connector) Intel 82443LX (PAC) Rage Turbo Intel 82371EB (PIIX4E) Creative Labs ES1371 Crystal Semiconductor CS4297
Figure Thermally-Sensitive Components
OC440LX Motherboard
1.17 Reliability
mean time between failures (MTBF) prediction calculated using component subassembly random failure rates. calculation based Bellcore Reliability Prediction Procedure, TR-NWT-000332, Issue September 1991. MTBF prediction estimating repair rates spare parts requirements. MTBF data calculated from predicted data MTBF prediction motherboard 163,242 hours.
1.18 Environmental Specifications
Table
Parameter Temperature Nonoperating Operating Shock Unpackaged Packaged trapezoidal waveform Velocity change inches/sec Half sine millisecond Product Weight (lbs) 21-40 41-80 81-100 Vibration Unpackaged Packaged Humidity Nonoperating Operating noncondensing relative humidity noncondensing
Environmental Specifications
Specification
Free Fall (inches)
Velocity Change (inches/sec)
sloping 0.02 (flat) (flat) sloping down 0.00015
Motherboard Description
1.19 Regulatory Compliance
This motherboard complies with following safety regulations when correctly installed compatible host system.
Table
Regulation 1950 950-95, edition, Dated 07-28-95 950, Edition, 1992 (with Amendments 950, edition, 1991 (with Amendments EMKO-TSE (74-SEC) 207/94
Safety Regulations
Title Standard Safety Information Technology Equipment including Electrical Business Equipment. (USA Canada) Standard Safety Information Technology Equipment including Electrical Business Equipment. (European Union) Standard Safety Information Technology Equipment including Electrical Business Equipment. (International) Summary Nordic deviations 950. (Norway, Sweden, Denmark, Finland)
Table
Regulation
Regulations
Title Title Code Federal Regulations, Parts Subpart pertaining unintentional radiators. (USA) Limits methods measurement Radio Interference Characteristics Information Technology Equipment. (International) Limits methods measurement Radio Interference Characteristics Information Technology Equipment. (Europe) Generic Immunity Standard; Currently compliance determined testing 801-2, (Europe) Implementation Regulations Voluntary Control Radio Interference Data Processing Equipment Electronic Office Machines. (Japan) Interference-Causing Equipment Standard, Digital Apparatus. (Canada)
Class CISPR Edition, 1993
022, 1994 082-1 (1992) VCCI Class (ITE)
ICES-003, Issue
1.19.1
Product Certification Markings
This motherboard following product certification markings: European Marking: Consists marking board shipping container. Recognition Mark: Consists stylized backward component side board, File E139761 component side board, solder side board. Board material flammability 94V-0. Canadian Compliance: Consists small followed stylized backward component side board.
OC440LX Motherboard
Resource Mapping
Memory
Table Memory
Address Range (hex) 100000 20000000 E8000 FFFFF E0000 E7FFF C8000 DFFFF A0000 C7FFF 00000 9FFFF Size Description Extended memory System BIOS System BIOS (Available UMB) Available high memory (open buses) Video memory BIOS Conventional memory
Address Range (decimal) 1024 524288 1024
Channels
Table Channels
Data Width 16-bits 16-bits 16-bits 16-bits 16-bits 16-bits 16-bits System Resource Audio Audio/parallel port Diskette drive Parallel port (for ECP)/audio Reserved cascade channel Open Open Open
Channel Number
OC440LX Motherboard
Table
Size bytes bytes bytes bytes bytes byte byte byte bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes bytes byte bytes bytes bytes bytes bytes byte Description controller Interrupt controller Super controller configuration registers Counter/Timer Counter/Timer Keyboard controller NMI, speaker control Keyboard controller Real time clock controller page registers Interrupt controller control controller Numeric processor Secondary controller Primary controller Audio game port stick Audio (Sound Blaster compatible) LPT3 LPT2 COM4/Video (8514A) COM2 MPU-401 (MIDI) Secondary controller Audio controller read data port Plug Play enumerator LPT1 AdLib synthesizer) Video (monochrome) Video (VGA) COM3 Diskette controller Primary controller COM1 Edge/level triggered Windows Sound System port, LPTn base address 400h configuration registers Turbo reset control register Address (hex) 0000 000F 0020 0021 002E 002F 0040 0043 0048 004B 0060 0061 0064 0070 0071 0080 008F 00A0 00A1 00B2 00B3 00C0 00DE 00F0 00FF 0170 0177 01F0 01F7 0200 0207 0220 022F 0228 022F 0278 027F 02E8 02EF 02F8 02FF 0330 0331 0376 0377 0120 0127 0274 0277 0378 037F 0388- 038D 03B0 03BB 03C0 03DF 03E8 03EF 03F0 03F5, 03F7 03F6 03F8 03FF 04D0 04D1 0530 0537 LPTn 400h 0CF8 0CFF* 0CF9**
DWORD access only Byte access only
Resource Mapping
Configuration Space
Table Configuration Space
Device Number (hex) Function Number (hex) Description Intel 82443LX (PAC) Intel 82443LX (PAC) Intel 82371EB (PIIX4E) PCI/ISA bridge Intel 82371EB (PIIX4E) master Intel 82371EB (PIIX4E) Intel 82371EB (PIIX4E) power management audio controller expansion slot (J4C1) expansion slot (J4B1) expansion slot (J4A3)
Number (hex)
OC440LX Motherboard
Interrupts
Table
Interrupts
System Resource channel check Reserved, interval timer Reserved, keyboard controller Reserved, cascade interrupt from slave COM2* COM1* LPT2 (Plug Play option)/audio/user available Diskette drive controller LPT1* Real time clock Reserved USB/user available Windows Sound System* user available PS/2 mouse port present, else user available) Reserved, numeric processor Primary present, else user available) Secondary present, else user available)
Default, changed another
Interrupt Routing
This section describes interrupt sharing interrupt signals connected between expansion slots onboard devices. specification specifies interrupts shared between devices attached bus. most cases, small amount latency added interrupt sharing does affect operation throughput devices. some special cases where maximum performance needed from device, device should share interrupt with other devices. following information avoid sharing interrupt with add-in board. devices categorized follows specify their interrupt grouping: INTA: default, add-in boards that require only interrupt this category. almost cards that require more than interrupt, first interrupt card also classified INTA. INTB: Generally, second interrupt add-in boards that require more interrupts classified INTB. (This absolute requirement.) INTC INTD: Generally, third interrupt add-in boards classified INTC fourth interrupt classified INTD.
Resource Mapping
PIIX4E PCI-to-ISA bridge four programmable interrupt request (PIRQ) input signals. interrupt source (either onboard from add-in board) connects these PIRQ signals. Because there only four signals, some interrupt sources mechanically tied together motherboard therefore share same interrupt. Table lists PIRQ signals shows signals connected onboard interrupt sources.
Table Interrupt Routing
First Expansion Slot: J4C1 INTA INTB INTC INTD Second Expansion Slot: J4B1 INTB INTC INTD INTA Third Expansion Slot: J4A3 INTC INTD INTA INTB INTD INTC Video Audio Power Management INTA
PIIX4E PIRQ Signal PIRQA PIRQB PIRQC PIRQD
INTA
example, assume add-in board interrupt (group INTA) plugged into second slot. this slot, interrupt source from group INTA connects PIRQB signal. This add-in board will share interrupt. Now, however, plug add-in board that interrupt (group INTA) into first slot. Plug second add-in board that interrupts (groups INTA INTB) into second slot. INTA first slot connected signal PIRQA. INTA second slot connected signal PIRQB, INTB connected signal PIRQC, which already connected onboard audio. second interrupt source add-in board second slot will share interrupt with onboard audio.
NOTE
PIIX4E connect each PIRQ line internally signals 15). Typically, device that does share PIRQ line will have unique interrupt. However, certain interrupt-constrained situations, possible more PIRQ lines connected same signal.
OC440LX Motherboard
Overview BIOS Features
Introduction
motherboard uses Intel/Phoenix BIOS, which stored flash memory upgraded using disk-based program. addition BIOS, flash memory contains Setup program, POST, APM, auto-configuration utility, Windows 95-ready Plug Play. Section supported versions these specifications. This motherboard supports system BIOS shadowing, allowing BIOS execute from 64-bit onboard write-protected DRAM. BIOS displays message during POST identifying type BIOS revision code. initial production BIOS identified 4O4CL0X0.15A.
BIOS Flash Memory Organization
Intel 28F002 2-Mbit flash component organized bits divided into areas described Table table shows addresses image normal mode (the addresses change BIOS Recovery Mode).
Table Flash Memory Organization
Size Description Boot Block Vital Product Data (VPD) Extended System Configuration Data (ESCD) (DMI configuration data Plug Play data) Used BIOS (e.g., Event Logging) logo Scan Flash Area Main BIOS Block
Address (Hex) FFFFC000 FFFFFFFF FFFFA000 FFFFBFFF FFFF9000 FFFF9FFF FFFF8000 FFFF8FFF FFFC0000 FFFF7FFF
Resource Configuration
3.3.1 Plug Play: Autoconfiguration
BIOS automatically configure devices Plug Play devices. devices onboard add-in cards. Plug Play devices devices built meet Plug Play specification. Autoconfiguration lets user insert remove Plug Play cards without having configure system. When user turns system after adding Plug Play card, BIOS automatically configures interrupts, space, other system resources. interrupts Available Setup considered available add-in card. interrupts distributed available interrupts that have been assigned card system resources. assignment interrupts IRQs nondeterministic.
OC440LX Motherboard
devices share interrupt, device cannot share interrupt allocated another device. Autoconfiguration information stored ESCD format. information about versions Plug Play supported this BIOS, Section 6.2.
3.3.2
Plug Play
Plug Play operating system (see Section 4.3) selected Setup, BIOS autoconfigures only Plug Play cards that required booting (IPL devices). Plug Play operating system selected Setup, BIOS autoconfigures Plug Play cards. Since legacy devices autoconfigurable, resources them must reserved BIOS Setup.
3.3.3
Support
select Auto Setup, BIOS automatically sets connectors with independent channel support. interface supports hard drives Mode recognizes ATAPI devices, including CD-ROM drives, tape drives, Ultra drives (see Section supported version ATAPI). Add-in controllers supported. BIOS determines capabilities each drive configures them optimize capacity performance. take advantage high capacities typically available today, hard drives automatically configured Logical Block Addressing (LBA) Mode depending capability drive. override auto-configuration options specifying manual configuration Setup.
NOTE
connect device slave same cable ATAPI master device.
Desktop Management Interface (DMI)
method managing computers managed network. Section information about latest specification. main component management information format (MIF) database, which contains information about computing system components. Using DMI, system administrator obtain system types, capabilities, operational status, installation dates system components. database defines data provides method accessing this information. BIOS enables applications such Intel® LANDesk® Client Manager DMI. BIOS stores reports following information: BIOS data, such BIOS revision level Fixed-system data, such peripherals, serial numbers, asset tags Resource data, such memory size, cache size, processor speed Dynamic data, such event detection error logging
Overview BIOS Features
Intel provide system manufacturers with utility that programs system chassis-related information into space flash memory. utility used program BIOS during system manufacturing, that BIOS later report this information. Once written, this information cannot overwritten. does work directly under non-Plug Play operating systems (such Windows NT). However, BIOS supports table interface such operating systems. Using this support, service-level application running non-Plug Play access BIOS information.
Power Management
BIOS supports both ACPI. board used with ACPI-aware operating system, BIOS provides ACPI support. Otherwise, defaults support.
3.5.1
Advanced Power Management (APM)
Section version specification that supported. energy saving standby mode initiated following ways: Time-out period specified Setup Suspend/resume switch connected front panel sleep connector From operating system, such Suspend menu item Windows standby mode, motherboard reduce power consumption spinning down hard drives, reducing power turning VESA DPMS-compliant monitors. Power-management mode enabled disabled Setup (see Section 4.5). While standby mode, system retains ability respond external interrupts service requests, such incoming faxes network messages. keyboard mouse activity brings system standby mode immediately restores power monitor. BIOS enables default; operating system must support driver power-management features work. example, Windows supports power-management features upon detecting that enabled BIOS.
OC440LX Motherboard
3.5.2
Advanced Configuration Power Interface (ACPI)
ACPI gives operating system direct control over power management Plug Play functions computer. ACPI requires ACPI-aware operating system. ACPI features include: Plug Play (including device enumeration) functionality normally contained BIOS Power management control individual devices, add-in boards (some add-in boards require ACPI-aware driver), video displays, hard disk drives Methods achieving less than 30-watt system operation Power Suspend sleeping state, less than 5-watt system operation Suspend Disk sleeping state Soft-off feature that enables operating system power computer Support multiple wake events (see Table Support front panel power sleep mode switch. Table describes system states based long power switch pressed, depending ACPI configured with ACPI-aware operating system
Table Effects Pressing Power Switch
system this state. Sleep .and power switch pressed Less than four seconds Less than four seconds More than four seconds Less than four seconds .the system enters this state Power Soft off/Suspend Fail safe power Wake
3.5.2.1
System States Power States
Under ACPI, operating system directs system device power state transitions. operating system puts devices low-power states based user preferences knowledge devices being used applications. Devices that being used turned off. operating system uses information from applications user settings system whole into low-power state. Table lists power states supported motherboard along with associated system power targets. ACPI specification complete description various system power states.
Overview BIOS Features
Table Power States Targeted System Power
Global States working state sleeping state Sleeping States working stopped States working stop grant Device States working state D3device specification specific. power except wake logic. power wake logic, except when provided battery external source. Targeted System Power Full power power
G2/S5
Soft off. Context saved. Cold boot required. power system.
power
Power
mechanical off. power disconnected from computer.
power
power system that service performed.
Total system power dependent system configuration, including add-in boards peripherals powered system chassis' power supply. Dependent standby power consumption wake-up devices used system.
3.5.2.2
Wake Devices Events
table below describes which devices specific events wake computer from specific states.
Table Wake Devices Events
These devices/events wake computer. Power switch Modem .from this state
3.5.2.3
Plug Play
addition power management, ACPI provides controls information that operating system facilitate Plug Play device enumeration configuration. ACPI used only enumerate configure motherboard devices that have other hardware standards enumeration configuration. devices motherboard, example, enumerated ACPI.
OC440LX Motherboard
BIOS Upgrades
version BIOS upgraded from diskette using Intel® Flash Memory Update utility that available from Intel. This utility supports following BIOS maintenance functions: Update flash BIOS from file diskette Change language section BIOS Verify that upgrade BIOS matches target system prevent accidentally installing incompatible BIOS BIOS upgrades Intel Flash Memory Update utility available from Intel through Intel World Wide site. Section information about this site.
NOTE
Please review instructions distributed with upgrade utility before attempting BIOS upgrade.
3.6.1
Language Support
Setup program help messages supported languages. Five languages available: American English, German, Italian, French, Spanish. default language American English, which present unless another language programmed into BIOS using flash memory update utility. Section information about BIOS update utility. BIOS includes extensions support Kanji character other non-ASCII character sets. Translations other languages become available later date.
3.6.2
Logo Scan Area
flash-memory user area memory location FFFF8000h-FFFF8FFFh displaying custom logo during POST. utility available from Intel assist with installing logo into flash memory. Information about this capability available Intel Support world wide site. Section more information about this site.
Recovering BIOS Data
Some types failure destroy BIOS. example, data lost power outage occurs while BIOS being updated flash memory. BIOS recovered from diskette using BIOS recovery mode (see Section 1.13, beginning page 39). When recovering BIOS, aware following: Because small amount code available nonerasable boot block area, there video support. procedure only monitored listening speaker looking diskette drive LED. recovery process take several minutes; larger BIOS flash memory devices require more time.
Overview BIOS Features
single beep indicates beginning BIOS recovery process. beeps activity diskette drive indicate successful BIOS recovery. series continuous beeps indicates failed BIOS recovery.
create BIOS recovery diskette, bootable diskette must created BIOS update files copied BIOS upgrades Intel Flash Memory Upgrade utility available from Intel Support world wide site. Section more information about this site.
NOTE
computer configured boot from LS-120 diskette (see Section 4.6.2), BIOS recovery diskette must standard 1.44 diskette diskette.
Boot Options
Setup program, user choose boot from diskette drive, hard drive, CD-ROM, network, BIOS boot specification (BBS) compliant device. default setting diskette drive primary boot device hard drive secondary boot device. default third fourth devices disabled.
3.8.1
CD-ROM Network Boot
Booting from CD-ROM supported compliance Torito bootable CD-ROM format specification. Section information about Torito specification. Under Boot menu Setup program, CD-ROM listed boot device. Boot devices defined priority order. CD-ROM selected boot device, must first device. network selected boot device. This selection allows booting from network add-in card with remote boot installed.
3.8.2
Booting Without Attached Devices
embedded applications, BIOS been designed that after passing POST, operating system loader invoked even video adapter, keyboard, mouse attached. During POST, board will beep three times indicate that video adapter detected, this fatal error. With regard standard settings custom default settings BIOS, custom defaults have been set, battery failed, power failed, custom defaults will loaded back into CMOS power custom defaults have been set, standard defaults will loaded back into CMOS power
OC440LX Motherboard
Legacy Support
legacy support enables keyboards mice used even when operating system drivers place. default, legacy support disabled. legacy support only intended used accessing BIOS Setup installing operating system that supports USB. This sequence describes legacy support operates default (disabled) mode. When power computer, legacy support disabled. POST begins. legacy support temporarily enabled BIOS. This allows keyboard enter Setup program maintenance mode. POST completes disables legacy support (unless Enabled while Setup). operating system loads. While operating system loading, keyboards mice recognized. After operating system loads drivers, devices recognized. install operating system that supports USB, enable Legacy support BIOS Setup follow operating system's installation instructions. Once operating system installed drivers configured, legacy support longer used. Legacy Support left enabled BIOS Setup needed. Notes using legacy support: legacy support enabled, don't PS/2 keyboards mice. example, PS/2 keyboard with mouse, keyboard PS/2 mouse. devices with operating system that does support USB. legacy intended support devices non-USB aware operating system. legacy support keyboards mice only. Hubs other devices supported.
Overview BIOS Features
3.10 BIOS Security Features
BIOS includes security features that restrict access BIOS Setup program boot computer. supervisor password user password Setup program booting computer, with following restrictions: supervisor password gives unrestricted access view change Setup options Setup program. This supervisor mode. user password gives restricted access view change Setup options Setup program. This user mode. only supervisor password set, pressing <Enter> password prompt Setup program allows user restricted access Setup. both supervisor user passwords set, users enter either supervisor password user password access Setup. Users have access Setup respective which password entered. Setting user password restricts boot computer. password prompt will displayed before computer booted. only supervisor password set, computer boots without asking password. both passwords set, user enter either password boot computer. Table shows effects setting supervisor password user password. This table reference only displayed screen.
Table Supervisor User Password Functions
User Mode Setup Options Password Enter Setup None Supervisor Password During Boot None None
Supervisor Password Mode Neither Supervisor only User only Supervisor user change options change options change options
change None options change limited number options Supervisor Password
change Enter Password options Clear User Password change limited number options Supervisor Password Enter Password
User Supervisor user
User Supervisor user
password set, user change Setup options.
Section information about setting user supervisor passwords.
OC440LX Motherboard
BIOS Setup Program
Setup program viewing changing BIOS settings computer. Setup accessed pressing <F2> after Power-On Self Test (POST) memory test begins before operating system boot begins. Table shows menus available from menu Setup screen.
Table Setup Menu
Description Specifies processor speed clears Setup passwords. This menu only available configure mode. Refer Section 1.13 information about configure mode. Allocates resources hardware components. Specifies advanced features available through chipset. Specifies passwords security features. Specifies power management features. Specifies boot options power supply controls. Saves discards changes Setup program options.
Setup Menu Screen Maintenance
Main Advanced Security Power Boot Exit
Table shows function keys available menu screens.
Table
Setup <F1> <Alt-H> <Esc> <Home> <End> <PgUp> <PgDn> <F5> <F6> <Space> <F9> <F10> <Enter>
Setup Function Keys
Description Brings help screen current item. Exits menu. Selects different menu screen. Moves cursor down. Moves cursor bottom window. Moves cursor bottom window. Selects previous value field. Selects next value field. Load default configuration values current menu. Save current values exit Setup. Executes command selects submenu.
OC440LX Motherboard
Maintenance Menu
This menu setting processor speed clearing Setup passwords. Setup only displays this menu configure mode. Section 1.13 information about using configure mode.
Table
Feature Processor Speed
Maintenance Menu
Options Description Specifies processor speed megahertz. This setup screen will only show speeds including maximum speed processor installed motherboard. Clears user supervisor passwords.
Clear Passwords
options
Main Menu
This menu reports processor memory information configuring system date system time.
Table
Feature BIOS Version Processor Type Processor Speed Cache System Memory Memory Bank Memory Bank Language
Main Menu
Options options options options options options options Description Displays version BIOS. Displays processor type. Displays processor speed. Displays size second-level cache. Displays total amount motherboard. Displays size type DIMM installed each memory bank.
System Time System Date
English (US) Displays language used BIOS. (default) Italian Francais Deutsch Espanol Hour, minute, Specifies current time. second Month, day, year Specifies current date.
BIOS Setup Program
Advanced Menu
This menu setting advanced features that available through chipset.
Table
Feature Plug Play
Advanced Menu
Options (default) Description Specifies Plug Play operating system being used.
lets BIOS configure devices. lets operating system configure Plug Play devices. required with Plug Play operating system.
Reset Configuration Data Numlock (default) Auto (default) options Clears BIOS configuration data next boot. Specifies power state Lock feature numeric keypad keyboard. Configures peripheral ports devices. When selected, displays Peripheral Configuration submenu. Specifies type connected device. When selected, displays Floppy Options submenu. Configures Events Logging. When selected, displays Events Logging submenu. Configures video features. When selected, displays Video Configuration submenu. Configures memory blocks IRQs legacy devices. When selected, displays Resource Configuration submenu.
Peripheral Configuration
Configuration Floppy Options Event Logging Video Configuration Resource Configuration
options options options options options
OC440LX Motherboard
4.3.1
Peripheral Configuration Submenu
Peripheral Configuration Submenu
Options Disabled Enabled (default) Auto Description Configures serial port.
This submenu configuring computer peripherals.
Table
Feature Serial port
Auto assigns first free port, normally COM1, address 3F8h interrupt IRQ4.
(asterisk) displayed next address indicates conflict with another device.
Base address
Interrupt port
(default) (default) Disabled (default) Enabled Auto
Specifies base address** serial port.
Specifies interrupt serial port. Configures port.
Auto assigns first free port, normally COM1, address 3F8h interrupt IRQ4.
(asterisk) displayed next address indicates conflict with another device.
Mode Base address
Interrupt
IrDA (default) ASK-IR (default) (default)
Specifies mode. Specifies base address** port.
Specifies interrupt port.
either serial port port address set, that address will appear list options other port. mach32 mach64 video controller active add-in board, COM4, 2E8h address will appear list options either serial port port.
continued
BIOS Setup Program
Table
Parallel port
Peripheral Configuration Submenu (continued)
Disabled Enabled Auto (default) Configures parallel port.
Auto assigns LPT1 address 378h interrupt IRQ7.
(asterisk) displayed next address indicates conflict with another device.
Mode
Output Only Bi-directional (default)
Selects mode parallel port. Output Only operates AT-compatible mode. Bi-directional operates bi-directional PS/2-compatible mode. Extended Parallel Port mode, high-speed bidirectional mode. Enhanced Capabilities Port mode, high-speed bi-directional mode. Specifies base address parallel port.
Base address Interrupt Audio Legacy Support
(default) (default) Disabled Enabled (default) Disabled (default) Enabled
Specifies interrupt parallel port. Enables disables onboard audio subsystem. Enables disables legacy support.
OC440LX Motherboard
4.3.2
Configuration
Configuration
Options Disabled Primary Secondary Both (default) Description Specifies integrated controller. Primary enables only Primary Controller. Secondary enables only Secondary Controller. Both enables both controllers.
Table
Feature
Controller
Hard Disk Pre-Delay
Primary Master Primary Slave Secondary Master Secondary Slave
Disabled Specifies hard disk drive pre-delay. Seconds Seconds (default) Seconds Seconds Seconds Seconds Seconds options Reports type connected device. When selected, displays Primary Master submenu. options options options Reports type connected device. When selected, displays Primary Slave submenu. Reports type connected device. When selected, displays Secondary Master submenu. Reports type connected device. When selected, displays Secondary Slave submenu.
BIOS Setup Program
4.3.3
Configuration Submenus
This submenu configuring devices, including: Primary master Primary slave Secondary master Secondary slave
Table
Feature Type
Configuration Submenus
Options None ATAPI Removable Other ATAPI CD-ROM User Removable Auto (default) options Disabled Sectors Sectors Sectors Sectors Disabled Enabled Standard Fast Fast Fast Fast FPIO FPIO Disabled Mode Mode Mode Description Specifies configuration mode devices.
User allows cylinders, heads, sectors fields changed. Auto automatically fills values cylinders, heads, sectors fields.
Reports maximum capacity hard disk. Specifies number sectors block transfers from hard drive memory. Check hard drive's specifications optimum setting. Enables disables mode control. Specifies method moving data to/from drive.
Maximum Capacity Multi-Sector Transfers
Mode Control Transfer Mode
Ultra
Specifies Ultra mode drive.
OC440LX Motherboard
4.3.4
Floppy Options Submenu
Floppy Options Submenu
Options Disabled Enabled (default) Auto Disabled 1.44/1.25 (default) 2.88 Disabled (default) Enabled Description Disables enables integrated diskette drive controller. Specifies capacity physical size diskette drive
This submenu configuring diskette drive interface.
Table
Feature Floppy Disk Controller
Diskette
Floppy Write Protect
Disables enables write protect diskette drive
4.3.5
Event Logging
Event Logging Submenu
Options options options options (default) Disabled Enabled (default) options Description Indicates there space available event log. Indicates contents event valid. Enables viewing event log. Clears event after rebooting. Enables logging events. Marks events read.
This submenu configuring event logging features.
Table
Feature Event capacity Event validity View event Clear event logs Event Logging Mark events read
4.3.6
Video Configuration Submenu
Video Configuration Submenu
Options Description
This submenu configuring video features.
Table
Feature Palette Snooping Aperture Size
Disabled (default) Controls ability primary graphics controller Enabled share common palette with add-in video card. (default) Specifies aperture size video controller.
BIOS Setup Program
4.3.7
Resource Configuration Submenu
Resource Configuration Submenu
Options C800 CBFF CC00- CFFF D000 D3FF D400 D7FF D800 DBFF DC00 DFFF IRQ3 IRQ4 IRQ5 IRQ7 IRQ10 IRQ11 Available (default) Reserved Available (default) Reserved Available (default) Reserved Available (default) Reserved Available (default) Reserved Available (default) Reserved Available (default) Reserved Available (default) Reserved Available (default) Reserved Available (default) Reserved Available (default) Reserved Available (default) Reserved Description Reserves specific upper memory blocks legacy devices.
This submenu configuring memory interrupts.
Table
Feature Memory Reservation
Reservation
Reserves specific IRQs legacy devices. (asterisk) displayed next indicates conflict.
Security Menu
This menu setting passwords security features.
Table
Feature User Password Supervisor Password User Password Supervisor Password Clear User Password User Setup Access
Security Menu
Options options options Password seven alphanumeric characters. Password seven alphanumeric characters. Options Name View Only (default) Limited Access Full Disabled (default) Enabled Description Reports there user password set. Reports there supervisor password set. Specifies user password. Specifies supervisor password. Clears user password. Specifies type user access.
Unattended Start
Enables unattended start feature. When enabled, computer boots, keyboard locked. user must enter password unlock computer boot from floppy diskette.
OC440LX Motherboard
Power Menu
This menu setting power management features.
Table
Feature Power Management Support Inactivity Timer
Power Menu
Options Disabled Enabled (default) (default) Minute Minutes Minutes Minutes Minutes Minutes Minutes Disabled Enabled (default) Disabled Standby (default) Suspend Sleep On/Off (default) Sleep/Wake Description Enables disables BIOS power management feature. Specifies amount time before computer enters standby mode.
Hard Drive VESA Video Power Down
Enables power management hard disks during standby suspend modes. Specifies power management video during standby suspend modes.
Power Button Behavior
Specifies function power button.
Boot Menu
This menu setting boot features boot sequence.
Table
Feature Boot-time Diagnostic Screen Quick Boot Mode Scan User Flash Area After Power Failure
Boot Menu
Options Disabled (default) Enabled Disabled Enabled (default) Disabled (default) Enabled Description Displays diagnostic screen during boot. Enables computer boot without running certain POST tests. Enables BIOS scan flash memory user binary files that executed boot time.
Stay Specifies mode operation AC/Power loss Last State (default) occurs. Power restores power computer. Power
Stay keeps power until power button pressed. Last State restores previous power state before power loss occurred.
continued
BIOS Setup Program
Table
Boot Menu (continued)
Stay Specifies computer responds incoming call Power (default) installed modem when power off. Stay Specifies computer responds wakeup Power (default) event when power off. Stay (default) Power Removable devices Hard Drive ATAPI CD-ROM Drive Network Boot Specifies computer responds wakeup event when power off. Specifies boot sequence from available devices. specify boot sequence: Select boot device with Press move device list move device down list. operating system assigns drive letter each boot device order listed. Changing order devices changes drive lettering.
Modem Ring First Boot Device Second Boot Device Third Boot Device Fourth Boot Device
Hard Drive Removable Devices
options options
Lists available hard drives. When selected, displays Hard Drive submenu. Lists available removable devices. When selected, displays Removable Devices submenu.
4.6.1
Hard Drive Submenu
Hard Drive Submenu
Description Specifies boot sequence hard drives attached computer. specify boot sequence: Select boot device with Press move device list move device down list. operating system assigns drive letter each device order listed. Changing order devices changes drive lettering.
This submenu configuring boot sequence hard drives.
Table
Options Bootable Card
OC440LX Motherboard
4.6.2
Removable Devices Submenu
Removable Devices Submenu
Description Specifies boot sequence removable devices attached computer. specify boot sequence: Select boot device with Press move device list move device down list. operating system assigns drive letter each device order listed. Changing order devices changes drive lettering.
This submenu configuring boot sequence removable devices.
Table
Options Legacy Floppy Drives
Exit Menu
This menu exiting Setup program, saving changes, loading saving defaults.
Table
Feature Exit Saving Changes Exit Discarding Changes Load Setup Defaults Load Custom Defaults Save Custom Defaults
Exit Menu
Description Exits saves changes CMOS RAM. Exits without saving changes made Setup. Loads factory default values Setup options. Loads custom defaults Setup options. Saves current values custom defaults. Normally, BIOS reads Setup values from flash memory. this memory corrupted, BIOS reads custom defaults. custom defaults set, BIOS reads factory defaults. Discards changes without exiting Setup. option values present when computer turned used.
Discard Changes
Error Messages Beep Codes
BIOS Error Messages
Table BIOS Error Messages
Explanation Drive present fails POST diskette tests. Check that drive defined with proper diskette type Setup that diskette drive installed correctly. Extended memory working configured properly offset nnnn. hexadecimal number nnnn bits address (System, Extended, Shadow memory) that failed memory test. Each indicates failed bit. Fixed disk working configured properly. Check fixed disk installed properly. Setup sure fixed-disk type correctly identified. Type diskette drive drive correctly identified Setup. Problem with NVRAM (CMOS) access. keyboard controller failed test. replacing keyboard. Keyboard working. BIOS discovered stuck displays scan code stuck key. Unlock system proceed. Monitor type correctly identified Setup. Operating system cannot located either drive drive Enter Setup fixed disk drive properly identified. Parity error found system bus. BIOS attempts locate address display screen. cannot locate address, displays ????. Parity error found bus. BIOS attempts locate address display screen. cannot locate address, displays ????. Displayed after recoverable error message. Press <F1> start boot process <F2> enter Setup change settings. Real-time clock fails BIOS test. require motherboard repair. continued
Error Message Diskette drive error
Extended Failed offset: nnnn Failing Bits: nnnn
Fixed Disk Failure Fixed Disk Failure Fixed Disk Controller Failure Incorrect Drive type SETUP Invalid NVRAM media type Keyboard controller error Keyboard error Keyboard error Keyboard locked Unlock switch Monitor type does match CMOS SETUP Operating system found Parity Check
Parity Check Press <F1> resume, <F2> Setup Real time clock error
OC440LX Motherboard
Table
BIOS Error Messages (continued)
Explanation Shadow failed offset nnnn block which error detected. CMOS clock battery indicator shows battery dead. Replace battery Setup reconfigure system. cache failed BIOS test. BIOS disabled cache. System CMOS been corrupted modified incorrectly, perhaps application program that changes data stored CMOS. Setup reconfigure system either getting default values and/or making your selections. System failed offset nnnn block which error detected. timer test failed. Requires repair system motherboard.
Error Message Shadow Failed offset: nnnn System battery dead Replace SETUP System cache error Cache disabled System CMOS checksum SETUP
System Failed offset: nnnn System timer error
nnnn hexadecimal number
Error Messages Beep Codes
Port POST Codes
During POST, BIOS generates diagnostic progress codes (POST codes) port 80h. POST fails, execution stops last POST code generated left port 80h. This code useful determining point where error occurred. Displaying POST codes requires add-in card (often called POST card). POST card decode port display contents medium such seven-segment display. These cards purchased from Microdevices other sources. Table provides POST codes that generated BIOS. Some codes repeated table because that code applies more than operation.
Table
Code
Port Codes
Description POST Operation Verify real mode Disable nonmaskable interrupt (NMI) processor type Initialize system hardware Initialize chipset with initial POST values POST flag Initialize registers Enable cache Initialize caches initial POST values Initialize component Initialize local Initialize power management Load alternate registers with initial POST valuesnew Restore control word during warm boot Initialize mastering devices Initialize keyboard controller BIOS checksum Initialize cache before memory autosize 8254 timer initialization 8237 controller initialization Reset programmable interrupt controller Test DRAM refresh Test keyboard controller segment register Enable line Autosize DRAM Initialize POST memory manager continued
OC440LX Motherboard
Table
Code
Port Codes (continued)
Description POST Operation Currently Progress Clear base failure address line xxxx* failure data bits xxxx* byte memory Enable cache before system BIOS shadow failure data bits xxxx* high byte memory Test bus-clock frequency Initialize POST dispatch manager Test CMOS Initialize alternate chipset registers Warm start shut down Reinitialize chipset (motherboard only) Shadow system BIOS Reinitialize cache (motherboard only) Autosize cache Configure advanced chipset registers Load alternate registers with CMOS valuesnew Initial speed Initialize interrupt vectors Initialize BIOS interrupts POST device initialization Check copyright notice Initialize manager option ROMs Check video configuration against CMOS data Initialize devices Initialize video adapters system Display QuietBoot screen Shadow video BIOS Display BIOS copyright notice Display type speed Initialize EISA motherboard Test keyboard click enabled Enable keyboard Test unexpected interrupts Initialize POST display service Display prompt "Press enter SETUP" Disable cache continued
Error Messages Beep Codes
Table
Code
Port Codes (continued)
Description POST Operation Currently Progress Test between Test extended memory Test extended memory address lines Jump UserPatch1 Configure advanced cache registers Initialize multiprocessor APIC Enable external processor caches Setup System Management Mode (SMM) area Display external cache size Display shadow-area message Display possible high address recovery Display error messages Check configuration errors Test real-time clock Check keyboard errors Test lock hardware interrupt vectors Initialize coprocessor present Disable onboard Super ports IRQs Late POST device initialization Detect install external RS232 ports Configure non-MCD controllers Detect install external parallel ports Initialize PC-compatible devices Re-initialize onboard ports Configure motherboard configurable devices Initialize BIOS Data Area Enable nonmaskable Interrupts (NMIs) Initialize extended BIOS data area Test initialize PS/2 mouse Initialize diskette controller Determine number drives Initialize hard-disk controllers Initialize local-bus hard-disk controllers Jump UserPatch2 Build MPTABLE multiprocessor boards Disable address line (Rel. earlier) Install CD-ROM boot continued
OC440LX Motherboard
Table
Code
Port Codes (continued)
Description POST Operation Currently Progress Clear huge segment register multiprocessor table Search option ROMs Check SMART Drive Shadow option ROMs power management Enable hardware interrupts Determine number SCSI drives time Check lock Initialize typematic rate Erase prompt Scan stroke Enter SETUP Clear POST flag Check errors POST done prepare boot operating system short beep before boot Terminate QuietBoot Check password (optional) Clear global descriptor table Clean graphics Initialize parameters Initialize Option ROMs Clear parity checkers Display MultiBoot menu Clear screen (optional) Check virus backup reminders boot with Initialize POST Error Manager (PEM) Initialize error logging Initialize error display function Initialize system error handler continued
Error Messages Beep Codes
Table
Code
Port Codes (continued)
Description POST Operation (The following boot block flash ROM) Initialize chipset Initialize bridge Initialize processor Initialize system timer Initialize system Check force recovery boot Checksum BIOS BIOS huge segment Initialize multiprocessor Initialize special code Initialize Initialize memory type Initialize memory size Shadow boot block System memory test Initialize interrupt vectors Initialize runtime clock Initialize video Initialize beeper Initialize boot Clear huge segment Boot mini-DOS Boot full
BIOS detects error 2Ch, 2Eh, (base error), displays additional word-bitmap (xxxx) indicating address line bits that failed. example, 0002" means address line (bit set) failed. 1020" means data bits (bits set) have failed lower bits. BIOS also sends bitmap port80 display. first displays check point code, followed delay, high-order byte, another delay, then low-order byte error. repeats this sequence continuously.
OC440LX Motherboard
BIOS Beep Codes
Whenever recoverable error occurs during Power-On Self Test (POST), BIOS displays error message describing problem. BIOS also issues beep code (one long tone followed short tones) during POST video configuration fails card installed faulty) external module does properly checksum zero. external module (e.g., video BIOS) also issue audible errors, usually consisting long tone followed series short tones. more information beep codes issued, check documentation that external device. There several POST routines that issue POST Terminal Error shut down system they fail. Before shutting down system, terminal-error handler issues beep code signifying test point error, writes error port 80h, attempts initialize video, writes error upper left corner screen (using both monochrome color adapters). POST completes normally, BIOS issues short beep before passing control operating system.
Table
Beeps 1-2-2-3 1-3-1-1 1-3-1-3 1-3-3-1 1-3-3-2 1-3-3-3 1-3-4-1 1-3-4-3 1-4-1-1 2-1-2-2 2-1-2-3 2-2-3-1 2-2-4-1
Beep Codes
Port Code Explanation BIOS checksum Test DRAM refresh Test keyboard controller Autosize DRAM Initialize POST memory manager Clear base failure address line xxxx failure data bits xxxx byte memory failure data bits xxxx high byte memory POST device initialization Check copyright notice Test unexpected interrupts Test between Search option ROMs. long, short beeps checksum failure
Specifications Customer Support
Online Support
Find information about Intel motherboard this World Wide site: http://support.intel.com/
Specifications
motherboard complies with following specifications:
Table Compliance with Specifications
Description Accelerated Graphics Port Interface Specification Revision Level Revision 1.0, July, 1996, Intel Corporation. specification available through Accelerated Graphics Implementers Forum http://www.agpforum.org/. Revision 1.2, February, 1996 Intel Corporation, Microsoft Corporation Revision 1.0, December 1996 Intel Corporation, Microsoft Corporation, Toshiba Corporation X3T10/2008D Revision Anonymous Site: fission.dt.wdc.com SFF-8020i Revision (SFF) Access: (408) 741-1600 Revision 2.01, February 1997 Intel Corporation, specification available http://www.intel.com/ Version 1.0, December, 1997 Intel Corporation Version 1.0, December, 1997 Intel Corporation Version 2.0, October 1995 American Megatrends Inc., Award Software International Inc., Dell Computer Corporation, Intel Corporation, Phoenix Technologies Ltd., SystemSoft Corporation Version 1.0, January 1995 Phoenix Technologies Ltd., Corporation. Torito specification available Phoenix site continued
Specification
ACPI
Advanced Power Management BIOS interface specification Advanced Configuration Power Interface specification Information Technology Attachment-3 Interface Packet Interface CDROMs form factor specification
ATA-3 ATAPI
microATX
microATX form factor specification Power Supply Design Guide Desktop Management Interface BIOS specification
Torito
Bootable CD-ROM format specification
OC440LX Motherboard
Table
Compliance with Specifications (continued)
Description Enhanced Parallel Port Local specification Phoenix BIOS Plug Play BIOS specification SDRAM Unbuffered DIMM specification Universal serial specification Revision Level IEEE 1284 standard, Mode v1.7 Revision 2.1, June 1995, Special Interest Group Revision 4.0, February 1997, Phoenix Technologies Ltd. Version 1.0a, 1994 Compaq Computer Corporation, Phoenix Technologies Ltd., Intel Corporation Revision 0.9, October 1997, Intel Corporation Revision 1.0, January 1996 Compaq Computer Corporation, Digital Equipment Corporation, Company, Intel Corporation, Microsoft Corporation, NEC, Northern Telecom
Specification Phoenix BIOS Plug Play
SDRAM DIMMs (64-and 72-bit)
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