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A2
1-D1
-Z120-1-761
System Board Features
Installation and
Removal Procedures
System board D1065
Technical Manual
Using the BIOS
Setup Program
Using the BIOS Features
Technical Reference
Error Messages
Regulatory and
Integration Information
July 1998 edition
Microsoft, MS, MS-DOS, Windows and Windows NT are registered trademarks of Microsoft
Corporation.
OS/2 is a registered trademark of International Business Machines Corporation.
VESA, DDC and DPMS are registered trademarks of Video Electronics Standards
Association.
All other trademarks referenced are trademarks or registered trademarks of their respective
owners, whose protected rights are acknowledged.
Copyright Siemens AG 1998.
All rights, including rights of translation, reproduction by printing, copying or similar methods,
even of parts are reserved.
Offenders will be liable for damages.
All rights, including rights created by patent grant or registration of a utility model or design,
are reserved.
Delivery subject to availability. Right of technical modification reserved..
Contents
System Board Features.................................................................................................................. 1
Notational conventions...................................................................................................................... 1
Summary of Features ....................................................................................................................... 2
Board Layout ....................................................................................................................................3
System Board Part-Function Table................................................................................................... 4
Microprocessor................................................................................................................................. 5
Processor Packaging........................................................................................................................ 5
Second Level Cache.........................................................................................................................5
Processor Options ............................................................................................................................ 5
Form Factor...................................................................................................................................... 6
Chipset ............................................................................................................................................. 7
82443GX PCI/A.G.P. Controller (PAC) (H)........................................................................................ 7
Intel® 82371EB Xcelerator (PIIX4E) (Q)........................................................................................... 9
Intel® 82093AA I/O Advanced Programmable Interrupt Controller (IOAPIC)................................... 10
IDE Support.................................................................................................................................... 10
Real-Time Clock, CMOS RAM, and Battery....................................................................................11
Diskette Drive Controller................................................................................................................. 11
Accelerated Graphics Port (A.G.P.) Support................................................................................... 12
Memory........................................................................................................................................... 12
Input/Output (I/O) Controller (O)...................................................................................................... 13
82558 PCI LAN Controller (D).........................................................................................................14
EtherExpress™ PRO/100 WfM PCI LAN Subsystem...................................................................... 14
Alert On LAN Component ............................................................................................................... 15
Audio Subsystem ............................................................................................................................ 15
Audio Drivers and Utilities............................................................................................................... 16
Hardware Monitor Subsystem......................................................................................................... 16
Power Supply.................................................................................................................................. 17
Power Supply Considerations......................................................................................................... 17
Expansion....................................................................................................................................... 18
Basic Input/Output System (BIOS).................................................................................................. 18
BIOS Upgrades............................................................................................................................... 18
BIOS Flash Memory Organization........................................................................................... 19
Piezoelectric Speaker (N) ............................................................................................................... 19
Installation and Removal Procedures ......................................................................................... 21
Safety Considerations..................................................................................................................... 21
How to Install the DRM Fans and Processor Retention Mechanism................................................ 21
Materials Required:................................................................................................................. 22
How to Install a Single Processor.................................................................................................... 29
How to Install a Second Processor ................................................................................................. 30
How to Remove and Install the System Board................................................................................ 32
How to Set Processor Speed.......................................................................................................... 34
Jumper Settings..............................................................................................................................35
How to Remove a Processor .......................................................................................................... 37
How to Upgrade a Processor.......................................................................................................... 38
How to Install the Termination Card................................................................................................ 39
How to Remove the Termination Card ............................................................................................ 40
How to Install Memory .................................................................................................................... 41
How to Remove Memory................................................................................................................. 43
How to Replace the CR2032 Lithium Battery (M)............................................................................ 43
How to Clear Passwords................................................................................................................. 45
A26361-D1065-Z120-1-7619
Contents
Using the BIOS Setup Program.................................................................................................... 47
Setup Program Modes.....................................................................................................................47
Modes.............................................................................................................................................47
Mode Control...................................................................................................................................47
Setup Program Menus.....................................................................................................................48
Menu Functionality..........................................................................................................................49
Menu Function Keys........................................................................................................................49
Maintenance Menu..........................................................................................................................50
Main Menu ......................................................................................................................................50
Advanced Menu .............................................................................................................................. 51
Peripheral Configuration Submenu..................................................................................................52
IDE Configuration Submenus..........................................................................................................53
Floppy Options Submenu................................................................................................................55
DMI Event Logging Submenu..........................................................................................................56
Video Configuration Submenu.........................................................................................................56
Security Menu.................................................................................................................................57
Power Menu....................................................................................................................................58
Boot Menu.......................................................................................................................................59
Boot Options ...................................................................................................................................60
Hard Drive Submenu.......................................................................................................................60
Removable Devices Submenu ........................................................................................................61
Exit Menu........................................................................................................................................61
Using the BIOS Features...............................................................................................................63
How to Prepare for the Upgrade......................................................................................................63
Obtaining the BIOS Upgrade File ....................................................................................................63
Recording the Current BIOS Settings..............................................................................................64
Creating a Bootable Floppy Disk .....................................................................................................64
Creating the BIOS Upgrade Floppy Disk .........................................................................................65
Upgrading the BIOS ........................................................................................................................66
Recovering the BIOS.......................................................................................................................67
Changing the BIOS Language......................................................................................................... 68
Plug and Play: PCI Autoconfiguration.............................................................................................68
ISA Plug and Play ...........................................................................................................................69
ISA Legacy Devices........................................................................................................................69
PCI IDE Support..............................................................................................................................69
Desktop Management Interface (DMI).............................................................................................70
Advanced Power Management (APM).............................................................................................70
Advanced Configuration and Power Interface (ACPI)......................................................................71
System States and Power States............................................................................................71
Wake Up Devices and Events.................................................................................................72
Plug and Play..........................................................................................................................72
BIOS Support..........................................................................................................................72
Language Support...........................................................................................................................72
OEM Logo or Scan Area .................................................................................................................72
USB Legacy Support.......................................................................................................................73
BIOS Security Features...................................................................................................................73
Recovering BIOS Data....................................................................................................................74
Technical Reference......................................................................................................................75
Front Panel Connectors (L) .............................................................................................................75
Speaker...........................................................................................................................................76
Reset Switch...................................................................................................................................77
Power/Sleep LED............................................................................................................................77
Hard Drive Activity LED...................................................................................................................77
Infrared Port....................................................................................................................................77
A26361-D1065-Z120-1-7619
Contents
Power Switch..................................................................................................................................77
Front Panel Pin Connector Mapping ............................................................................................... 78
Back Panel Connectors (E)............................................................................................................. 79
Keyboard and Mouse Interface....................................................................................................... 80
Universal Serial Bus (USB)............................................................................................................. 80
Parallel Port.................................................................................................................................... 81
Serial Ports..................................................................................................................................... 81
I/O Shield................................................................................................................................83
Midboard Connectors...................................................................................................................... 84
Add-in Card Connectors.................................................................................................................. 85
Audio Connectors ........................................................................................................................... 86
CD-ROM Audio...............................................................................................................................87
Telephony....................................................................................................................................... 87
Fan Connectors .............................................................................................................................. 89
Thermal Considerations.................................................................................................................. 90
Power Connectors .......................................................................................................................... 92
Peripheral Interface Connectors...................................................................................................... 95
Security and Hardware Management Connectors........................................................................... 96
Chassis Intrusion Connectors......................................................................................................... 98
Wake on LAN Technology Connector............................................................................................. 98
Wake on Modem............................................................................................................................. 98
Memory Map................................................................................................................................... 99
DMA Channels................................................................................................................................99
I/O Map..........................................................................................................................................100
PCI Configuration Space Map........................................................................................................102
LAN Subsystem Software..............................................................................................................103
Interrupts .......................................................................................................................................103
PCI Interrupt Routing Map .............................................................................................................104
Interrupt Routing Example .............................................................................................................105
Error Messages............................................................................................................................107
BIOS Beep Codes..........................................................................................................................107
BIOS Error Messages....................................................................................................................108
Port 80h POST Codes ...................................................................................................................110
Regulatory and Integration Information.....................................................................................115
Regulatory Compliance..................................................................................................................115
Product Certification Markings.......................................................................................................115
Installation Precautions..................................................................................................................116
Installation Instructions ..................................................................................................................116
A26361-D1065-Z120-1-7619
System Board Features
The system board is designed specifically for the DCC, MCAD, and EDA markets with a high
performance workstation.This chapter describes the features of the system board.
This system board is available in different configuration levels. Depending on the
hardware configuration of your device, it may be that you cannot find several options in
i
your version of the system board, even though they are described.
Notational conventions
The meanings of the symbols and fonts used in this manual are as follows:
Failure to do so may endanger your health, the operational integrity and electrical
safety of your PC, or the security of your data.
!
This symbol is followed by supplementary information, remarks and tips.
i
Texts which follow this symbol describe activities that must be performed in the order shown.
This symbol means that you must enter a blank space at this point.
This symbol means that you must press the Enter key.
Texts in this typeface
Texts in this bold typeface
Texts in italics
"Quotation marks" indicate names of chapters and terms that are being emphasized.
indicate commands or menu items.
are screen outputs.
are the entries you make via the keyboard.
A26361-D1065-Z120-1-7619
1
System Board Features
Summary of Features
The system board features are summarized below.
Form factor Custom ATX (12 inches by 13 inches)
Processor(s) • Two Slot 2 connectors
• Support for one or two Pentium
• 100 MHz host bus speed
• Up to 1 MB of L2 cache support on each processor
Chipset Intel® 82440GX, consisting of:
• 82443GX PCI/A.G.P. controller (PAC)
• 82371EB PCI ISA IDE Xcelerator (PIIX4E)
Memory • Four DIMM sockets
• Support for up to 2 GB of 100 MHz SDRAM
• Support for ECC DIMMs only (see Table 4 and associated text)
I/O Control • National Semiconductor PC97307 I/O controller
Peripheral Interfaces • Two serial ports
• Two USB ports
• One parallel port
• Two IDE interfaces with Ultra DMA support
• One diskette drive interface
Video • One A.G.P. slot
Audio • Crystal Semiconductor CS4235 audio codec
• Crystal Semiconductor CS9236 wavetable synthesizer
LAN • Intel® 82558 10/100 Mbps PCI LAN controller
Hardware Monitor • Microprocessor system hardware monitor (Analog Devices
ADM9240 or equivalent)
• Wired for Management (WfM) compliant
Expansion Capabilities • Five PCI slots
• One shared slot for either a PCI or an ISA add-in card
BIOS • Intel® E28F004BXT80 4 Mbit flash memory
• Support for SMBIOS, ACPI, APM, and Plug and Play
®
II Xeon™ processors
2
A26361-D1065-Z120-1-7619
System Board Features
Board Layout
The illustration below is a picture of the system board. The system board components are identified
by alphabetical callouts.
This board supports the Slot 2 processor (DS2P) family. It is a custom ATX form factor (12”x13”)
board with an ATX I/O panel.
A B C D
E
S
F
G
R
H
Q
P
I
J
O
N
M
Figure 1. System Board Components
A26361-D1065-Z120-1-7619
K
L
OM08377
3
System Board Features
System Board Part-Function Table
This table identifies the system board components called out in Figure 1 and defines the functional
purpose of each.
Table 1. System Board Part-Function Table
Callout ID Part (Component) Function
A Intel E28F004BXT80 4
Mbit Flash Memory
B Crystal Semiconductor
CS4235 Audio Codec
C A.G.P. Connector High performance graphics connector with support for
D Intel 82558 PCI LAN
Controller
E Back Panel Connectors Keyboard, mouse, USB, parallel, serial, LAN and audio
F Slot 2 Connector for
Boot Processor
G Slot 2 Connector for
Application Processor
H Intel® 82443GX (PAC) AGPset provides bus-control signals, address paths
I DIMM Sockets Support for up to 2GB PC100 compliant SDRAM
J Diskette Drive
Connector
K VRM Connector Plug-in Voltage Regulator Module for application
L Front Panel Connectors Connectors for PC speaker, reset switch, power LED,
M Battery Provides power to real-time clock and CMOS memory
N Piezoelectric Speaker Provides BIOS beep codes
O National Semiconductor
PC97307 I/O Controller
P IDE Connectors Each connector supports two IDE devices
Q 82371EB (PIIX4E) Provides USB and power management support in
R PCI Bus Add-in Board
Connectors
S ISA Bus Add-in Board
Connector
Flash upgradable. Stores BIOS, Setup program,
POST, APM, PCI auto configuration utility and Plug
and Play code
On board audio subsystem with integrated FM
synthesizer
133 MHz data transfer rates (AGP2x)
On board LAN controller with support for 10Base-T and
100Base-TX interfaces
connectors
Connector for Pentium II Xeon processor
Connector for Pentium II Xeon processor
and data paths for transfers between the processor's
host bus, PCI bus, the A.G.P. and main memory
DIMMS
Supports one or two diskette drives
processor
HDD LED, infrared port and power switch
Provides serial and parallel ports, diskette drive,
mouse, keyboard and IR interfaces
addition to EIDE and UDMA/33 data transfer rates
Support for 33 MHz PCI devices
Support for ISA compatible add-in cards
4
A26361-D1065-Z120-1-7619
System Board Features
Microprocessor
The system board supports one or two Pentium II Xeon 400 or 450 MHz processors, 100 MHz host
bus speeds, and L2 caches up to 1MB in size. The processor's VID pins automatically program the
voltage regulator on the system board to the required processor voltage for the Boot (P0) Processor
only.
A plug-in VRM must be used when adding an Application (P1) Processor. If a plug-in VRM is not
used, then the L2 cache will be disabled.
Processor Packaging
Each processor is packaged in a single edge contact cartridge (S.E.C.C.). The cartridge includes
the processor core, second-level cache, thermal plate, and back cover.
The processor connects to the system board through the Slot 2 connector, a 330-pin edge
connector. When mounted in a Slot 2 connector, the processor is secured by a retention
mechanism attached to the system board.
Second Level Cache
The second-level cache is located on the substrate of the S.E.C.C.. The ECC cache includes
components totaling up to 1 MB in size. All onboard system memory is cacheable.
Processor Options
The following processor configuration options can be used:
•
A single 400 MHz processor installed in the boot processor slot (P0) and a terminator card
installed in the application processor slot (P1). P0 is the Slot 2 connector closest to the middle
of the board. See Figure 1 callouts F and G.
•
Dual 400 MHz processors. When using two processors, a voltage regulator module (VRM)
must be installed.
•
A single 450 MHz processor installed in the boot processor slot (P0) and a terminator card
installed in the application processor slot (P1).
•
Dual 450 MHz processors. When using two processors, a voltage regulator module (VRM)
must be installed. See Figure 21, callout D for the location of the VRM connector.
If you are installing two processors, then the following values must be identical for both:
•
L2 cache size
•
Operating voltages
•
Processor speed
If the processor operating voltages for either VCC core or VCC L2 do not match, then the
computer will not boot.
!
Use configure mode to set the processor speed if necessary.
A26361-D1065-Z120-1-7619
5
System Board Features
Form Factor
The system board is designed to fit into a custom ATX form factor chassis.
The illustration below shows the board mounting hole locations. The mounting holes closest to the
Slot 2 connectors are used for mounting the processor retention mechanism to the board and
chassis.
3.300.20
12.70
12.30
6.20
2.59
11.40
6.74
3.35
0.00
0.30
0.00
0.45
5.10
Figure 2. System Board Custom ATX Form Factor
6
2.80
11.55
11.30
9.06
9.31
OM07109
A26361-D1065-Z120-1-7619
System Board Features
Chipset
The system board AGPset includes a Host-PCI bridge integrated with both an optimized DRAM
controller and an Accelerated Graphics Port (A.G.P.) interface.
The I/O subsystem of the system board is based on the PIIX4E which is a highly integrated PCIISA/IDE Accelerator Bridge. This chipset consists of the Intel 82443GX PCI/A.G.P. controller (PAC)
and the Intel® 82371EB PCI/ISA IDE Xcelerator (PIIX4E) bridge chip.
82443GX PCI/A.G.P. Controller (PAC) (H)
The Intel 82443GX PCI/A.G.P. Controller (PAC) provides the following functions:
•
Bus-control signals
•
Address paths
•
Data paths for transfers between the processor's host bus, PCI bus, the A.G.P., and main
memory.
Table 2 lists the PAC features and the functionality each feature supports.
Table 2. PCI/A.G.P. Controller Features
Feature Functionality
Processor Interface Control Support for processor host bus frequencies of 100 MHz only
32-bit addressing
Desktop optimized GTL + compliant host bus interface
Integrated DRAM Controller +3.3V only DIMM DRAM configurations
Up to four double sided DIMMs
100 MHz PC100-compatible Synchronous DRAM
DIMM serial presence detect via SMBus interface
2-, 4-, 8-, 16-, 32-, 64-, and 128-Mbit DRAM devices
SDRAM 64-bit data interface with ECC support
Symmetrical and asymmetrical DRAM addressing
A.G.P. Interface Complies with the A.G.P. specification Rev. 1.0
Support for +3.3V A.G.P. 66/133 MHz devices
Synchronous coupling to the host-bus frequency
PCI Bus Interface Complies with the PCI specification Rev. 2.1
Asynchronous coupling to the host-bus frequency
PCI parity generation support
Data streaming support from PCI-to-DRAM
Support for six PCI bus masters in addition to the host PCI-
to-ISA I/O bridge
Support for concurrent host, A.G.P., and PCI transactions to
main memory
A26361-D1065-Z120-1-7619
7
System Board Features
Feature Functionality
Data Buffering DRAM write buffer with read-around-write capability
Dedicated host-to-DRAM, PCI0-to-DRAM, and PCI1/A.G.P.to-DRAM read buffers
A.G.P. dedicated inbound/outbound FIFOs (AGP2X), used
for temporary data storage
Power Management Functions Support for system suspend/resume and power-on suspend
Compliant with ACPI power management
SMBus Support for Desktop
Management Functions
Support for System
Management Mode (SMM)
8
A26361-D1065-Z120-1-7619
System Board Features
Intel® 82371EB Xcelerator (PIIX4E) (Q)
The Intel® PIIX4E is a multifunction PCI device implementing the PCI-to-ISA bridge, PCI IDE
functionality, Universal Serial Bus (USB) host/hub function, and enhanced power management.
Table 3 lists the PIIX4E features and the functionality each feature supports.
Table 3. 82371EB Xcelerator Features
Feature Functionality
Multifunction PCI-to-ISA Bridge Support for the PCI bus at 33 MHz
Complies with the PCI specification
Full ISA bus support
USB Controller Two USB ports
Support for legacy keyboard and mouse
Support for UHCI Design Guide, revision 1.1, interface
Integrated Dual Channel
Enhanced IDE Interface
Enhanced DMA Controller Two 8237-based DMA controllers
Interrupt Controller Based on
82C59
Power Management Logic Sleep/resume logic
Real-Time Clock 256-byte battery backed CMOS RAM
16-bit Counters/Timers Based
on 82C54
Support for up to four IDE devices
PIO Mode 4 transfers at up to 16 MB/sec
Support for Ultra DMA/33 synchronous DMA mode transfers
up to 33 MB/sec
Bus master mode with an 8x32-bit buffer for bus master PCI
IDE burst transfers
Support for PCI DMA with three PC/PCI channels and
distributed DMA protocols
Fast type-F DMA for reduced PCI bus usage
Support for 15 interrupts
Programmable for edge/level sensitivity
Support for Wake on Modem, Wake on LAN technology, and
Wake on PME
Support for ACPI
System wakes from ACPI sleep state with keyboard activity
Includes date alarm
A26361-D1065-Z120-1-7619
9
System Board Features
Intel® 82093AA I/O Advanced Programmable Interrupt Controller (IOAPIC)
The Intel® 82093AA I/O Advanced Programmable Interrupt Controller (IOAPIC) provides interrupt
management and incorporates both static and dynamic symmetric interrupt distribution across all
processors in a multiprocessor system. The 82093AA IOAPIC features 24 interrupts as follows:
• 13 ISA interrupts
• Four PCI interrupts
• One Interrupt/SMI# rerouting
• Two system board interrupts
• One interrupt used for INTR input
• Three general purpose interrupts
• SCI BIOS supported steering
IDE Support
The system board has two independent bus-mastering IDE interfaces. These interfaces support
PIO Mode 3, PIO Mode 4, ATAPI devices (e.g., CD-ROM), and Ultra DMA synchronous-DMA mode
transfers. The BIOS supports logical block addressing (LBA) and extended cylinder head sector
(ECHS) translation modes. The BIOS automatically detects the IDE device transfer rate and
translation mode.
The system board supports LS-120 diskette technology through its IDE interfaces. LS-120 diskette
technology enables users to store 120 MB of data on a single, 3.5-inch removable diskette. LS-120
technology is backward compatible (both read and write) with 1.44 MB and 720 KB DOS-formatted
diskettes and is supported by Windows 95 and Windows NT operating systems.
The system board allows connection of an LS-120 compatible drive and a standard 3.5-inch diskette
drive. If an LS-120 drive is connected to an IDE connector and configured as the A drive, and a
standard 3.5-inch diskette drive is configured as a B drive, the standard diskette drive must be
connected to the diskette drive cable's "A" connector (the connector at the end of the cable). The
LS-120 drive can be configured as a boot device, if selected in the BIOS setup utility.
10
A26361-D1065-Z120-1-7619
System Board Features
Real-Time Clock, CMOS RAM, and Battery
The real-time clock provides a time-of-day clock and a multicentury calendar with alarm features
and century rollover.
The clock is compatible with DS1287 and MC146818 components and it supports 256 bytes of
battery-backed CMOS RAM in two banks that are reserved for BIOS use.
The time, date, and CMOS values can be specified in the Setup program. The CMOS values can
be returned to their defaults by using the Setup program.
An external coin-cell battery powers the real-time clock and CMOS memory. When the computer is
not plugged into a wall socket, then the battery has an estimated life of three years. When the
computer is plugged in, then the 3 V standby current from the power supply extends the life of the
battery.
Power is supplied to the chassis intrusion circuit by the battery when no AC power is
provided. Chassis intrusion will be detected when no AC power is available to the
i
system. If the switch is activated when no AC power is provided, then the drain on the
battery is approximately 200 mA.
The clock is accurate to ± 13 minutes/year at 25 ºC with 5 V applied.
Diskette Drive Controller
The diskette drive controller is software compatible with the DP8473 and N82077 diskette drive
controllers and supports both PC-AT and PS/2 modes. In the Setup program, the diskette drive
interface can be configured for the following diskette drive capacities and sizes:
•
360 KB, 5.25-inch
•
1.2 MB, 5.25-inch
•
720 KB, 3.5-inch
•
1.2 MB, 3.5-inch (driver required)
•
1.25/1.44 MB, 3.5-inch
A26361-D1065-Z120-1-7619
11
System Board Features
Accelerated Graphics Port (A.G.P.) Support
The Accelerated Graphics Port (A.G.P.) is a high-performance interconnect for graphic-intensive
applications, such as 3D applications.
A.G.P. is independent of the PCI bus. It is intended for exclusive use with graphical display devices.
A.G.P. provides these performance features:
• Pipelined-memory read and write operations that hide memory access latency
• Demultiplexing of address and data on the bus for near 100 percent bus efficiency
• AC timing for 133 MHz data transfer rates, allowing data throughput of 528 MB/sec
An A.G.P. connector is provided on the system board to install A.G.P. add-in cards.
Memory
The system board has four dual inline memory module (DIMM) sockets.
Minimum memory size is 32 MB; maximum memory size is 2 GB. The BIOS automatically detects
memory type and size.
The system board supports the following memory features:
• PC100 compliant 168-pin DIMMs with gold-plated contacts
• 3.3 V unbuffered or registered (not mixed) 100 MHz ECC SDRAM DIMMs only
• Single or double sided DIMMs in the sizes listed in the Table 4.
Table 4. DIMM Sizes Supported
DIMM Size Configuration
16 MB 2 Mbit x 72
32 MB 4 Mbit x 72
64 MB 8 Mbit x 72
128 MB 16 Mbit x 72
256 MB 32 Mbit x 72
512 MB 128 Mbit x 72
Memory can be installed in any order in one, two, three or four sockets.
Memory size can vary between sockets.
Memory speed is 100 MHz only.
12
A26361-D1065-Z120-1-7619
System Board Features
Input/Output (I/O) Controller (O)
The I/O controller handles the exchange of information between the processor and external devices
like the mouse and keyboard or a printer that are connected to the computer.
The National Semiconductor PC97307 I/O Controller is an ISA Plug and Play compatible
multifunction I/O device with components and features listed in the table below.
Table 5. I/O Controller Components
Component Feature(s)
Serial Ports Two 16450/16550A software compatible UARTs
Internal send/receive 16-byte FIFO buffer
Four internal 8-bit DMA options for the UART with SIR
support (USI)
Multimode Bidirectional Parallel Port Standard mode: IBM and Centronics compatible
Enhanced parallel port (EPP) mode with BIOS and
driver support
High speed extended capabilities port (ECP) mode
Diskette Drive Controller DP8473 and N82077 compatible
16-byte FIFO buffer
PS/2 diagnostic-register support
High performance digital data separator (DDS)
PC-AT, PS/2, and 3 mode diskette drive mode support
8042A Compatible Keyboard and
Mouse Controller
Support for IrDA and Consumer
Infrared Compliant Infrared Interface
By default, the I/O controller interfaces are automatically configured during boot up. The I/O
controller can also be manually configured in the Setup program.
A26361-D1065-Z120-1-7619
13
System Board Features
82558 PCI LAN Controller (D)
The Intel 82558 LAN Controller provides the functions listed in Table 6 below.
Table 6. LAN Controller Functions
Function
CSMA/CD Protocol Engine
PCI bus interface (Rev 2.1
compliant)
DMA engine for movement of
commands, status, and network
data across the PCI bus
Integrated physical layer interface Complete functionality necessary for the 10Base-T and
Integrated power management
features
Digitally controlled adaptive
equalizations and transmission
Includes:
100Base-TX interfaces
When in 10 Mbit/sec mode, the interface drives the
cable directly
A complete set of MII management registers for control
and status reporting
802.3µ Auto-Negotiation for automatically establishing
the best operating mode when connected to other 10
Base-T or 100Base-TX devices
Support for ACPI
Support for Wake on LAN technology
EtherExpress™ PRO/100 WfM PCI LAN Subsystem
The Intel EtherExpress PRO/100 Wired for Management (WfM) PCI LAN subsystem is an Ethernet
LAN interface that provides both 10Base-T and 100Base-TX connectivity. Features include:
• 32-bit direct bus mastering on the PCI bus
• Shared memory structure in the host memory that copies data directly to/from host memory
• 10Base-T and 100Base-TX capability using a single RJ-45 connector
• IEEE 802.3µ Auto-Negotiation for the fastest available connection
14
A26361-D1065-Z120-1-7619
System Board Features
Alert On LAN Component
The Alert on LAN component is a companion device to the Intel 82558 LAN controller. Together,
these devices provide a management interface between a remote management console (or
management server) and a client system monitoring instrumentation.
When an alert input is asserted, the Alert on LAN component transmits Ethernet packets to the
82558 through an 8-bit dedicated data path. Examples of events that can trigger alert messages to
a management server include:
•
Chassis intrusion
•
System BIOS hang (transmits POST code error)
•
LAN leash (transmits an alert that the LAN cable was disconnected)
•
Temperature out of specification
•
Fan failure
For more information on the Alert on LAN component and its network management capabilities,
contact your local Intel sales office.
Audio Subsystem
The optional onboard audio subsystem features the Crystal CS4235, an audio codec with an
integrated FM synthesizer.
The audio subsystem provides all the digital audio and analog mixing functions needed for recording
and playing sound on personal computers. The audio subsystem contains the following features:
•
Stereo analog-to-digital and digital-to-analog converters
•
Analog mixing, anti-aliasing, and reconstruction filters
•
Line and microphone level inputs
•
ADPCM, A-law, or µlaw digital audio compression/decompression
•
Full digital control of all mixer and volume control functions
•
High-quality, 16-bit, MPC-II compliant onboard audio
•
Full duplex operation
•
AdLib, Sound Blaster Pro 2.0, Windows Sound System, and MPU-401 support
•
Full DOS games compatibility
•
MIDI/Game port support
•
OPL3 compatible FM synthesizer
•
BIOS Setup-based enable/disable
The audio subsystem requires up to two DMA channels and one IRQ. Table 7 shows the IRQ, DMA
channel, and base I/O address options. These options are automatically chosen by the Plug and
Play interface, so there are no default settings.
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15
System Board Features
Table 7. Audio Subsystem Resources
Resource IRQ (Options) DMA Channel
(Options)
Sound Blaster
(DMA playback, DMA / IRQ
shared with Windows Sound
System capture)
Windows Sound System
(DMA playback)
MPU-401
(IRQ shared with Sound
Blaster)
MIDI 200-207h
FM Synthesis 388-38Dh
CS4235 Control FF0-FFFh
5 best choice
7
9 best choice
11
7
9 best choice
11
5 best choice
7
9 best choice
11
0 best choice
3
0
1 best choice
3
I/O Address (Options)
210-21Fh
220-22Fh best choice
230-234h
240-24Fh
250-25Fh
260-26Fh
534-537h best choice
608-60Bh
300-301h
330-331h best choice
332-333h
334-335h
Audio Drivers and Utilities
Audio software and utilities are available from Intel's World Wide Web site. Audio driver support is
provided for the Microsoft Windows NT 4.0 and Microsoft Windows 98 operating systems.
Hardware Monitor Subsystem
The hardware monitor subsystem provides low-cost instrumentation capabilities. The features of
the hardware monitor subsystem include:
• Management Level 4 functionality
• Analog Devices ADM 9240 or equivalent.
− Integrated temperature and voltage monitoring to detect levels above or below acceptable
values (+12 V, -12 V, +5 V, +3.3 V, and +2.5 V). When suggested ratings for
temperature, fan speed or voltage are exceeded, an interrupt is activated.
− Two fan speed sensors
− Access through the SMBus
• Remote reset capabilities from a remote peer or server through LANDesk
Manager and service layers
• Headers for front and rear chassis intrusion connectors.
16
®
3.3 (or later) Client
A26361-D1065-Z120-1-7619
System Board Features
Power Supply
Table 9 lists the power specifications for a computer that contains a system board with two 400 MHz
Pentium II Xeon processors, 128 MB SDRAM, a 3.5-inch diskette drive, an WD Caviar 3320 3.3 GB
Ultra ATA hard drive, a Hitachi CPR 8330 IDE CD-ROM, and a Diamond Viper 330 A.G.P. graphics
card. This information is provided only as a guide for calculating approximate power usage with
additional resources added.
Values for the Windows 98 desktop mode are measured at 1280x1024x256 colors and 70 Hz
refresh rate. AC watts are measured with a typical 300 W supply, nominal input voltage and
frequency, with true RMS wattmeter at the line input.
Table 8. Power Usage˘
Mode Watts (AC) Out of AC Wall Outlet
Windows 98 desktop 60 watts
Windows NT 4.0 desktop 92 watts
Power Supply Considerations
For typical configurations, the system board is designed to operate with at least a 300 W power
supply. A higher-wattage power supply should be used for heavily-loaded configurations. The
power supply must comply with the following recommendations:
•
The potential relation between 3.3 V DC and +5 V DC power rails
•
The current capability of the +5 VSB line
•
All timing parameters
•
Must meet UL SELV requirements and meet the 240VA energy limit
Table 9. DC Voltage Tolerances and Estimated Current Requirements (no PCI or A.G.P. shown)
DC Voltage Acceptable
Tolerance
+3.3 V
+5 V
+5 VSB (standby)± 5% 0.72A 0.72A
-5 V
+12 V
-12 V
±
5% 20A 20A
±
5%˘ 14A 16A
±
10% 0.0A 0.0A
±
5% 2.8A 3.1A
±
10% 0.0A 0.0A
Estimated current with a
400 MHz processor, 512 KB
cache, and 2 GB RAM
Estimated current with a
450 MHz processor, 512 KB
cache, and 2 GB RAM
Some heavily loaded configurations could require additional +3.3 V and +5 V power for
peripherals. Use the auxiliary power supply connector for this purpose.
i
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17
System Board Features
Expansion
The system board has seven expansion slots for installing add-cards such as video or network
cards that expand the capabilities of your computer.
The expansion slots available are as follows:
• Five PCI slots
• One shared slot (for a PCI or ISA card)
• One AGP 2X slot
Basic Input/Output System (BIOS)
The system board uses an Intel/Phoenix BIOS which is stored in flash memory. The BIOS can be
upgraded using a disk-based program.
The contents of flash memory includes the following items:
• BIOS
• Setup Program
• Power-on Self Test (POST)
• Advanced Power Management (APM)
• PCI Auto-configuration Utility
• Windows 98-ready Plug and Play Code
The system board supports system BIOS shadowing, allowing the BIOS to execute from 64-bit
onboard write-protected DRAM.
During POST, the BIOS displays a message identifying the type of BIOS and the revision code.
The initial production BIOS is identified as 4M4SG0X0.86E.
BIOS Upgrades
Please review the instructions distributed with the upgrade before attempting a BIOS
upgrade.
i
The BIOS can be upgraded from a diskette using the Intel Flash Memory Update utility that is
available from Intel. This utility does BIOS upgrades as follows:
• Updates the flash BIOS from a file on a disk
• Updates the language section of the BIOS
• Makes sure that the upgrade BIOS matches the target system to prevent accidentally installing
a BIOS for a different type of system.
BIOS upgrades and the update utility are available from Intel through the Intel World Wide Web site.
Chapter 4 details the procedure for executing a BIOS upgrade.
18
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System Board Features
BIOS Flash Memory Organization
The Intel E28F004BXT80 4-Mbit flash component is organized as 512 KB x 8 bits and is divided into
areas as described in Table 10. The table shows the addresses in the ROM image in normal mode
(the addresses change in BIOS Recovery Mode).
Table 10. Flash Memory Organization
Address (Hex) Size Description
FFFFC000 - FFFFFFFF 16 KB Boot Block
FFFFA000 - FFFFBFFF 8 KB Vital Product Data (VPD) Extended System
FFFF9000 - FFFF9FFF 4 KB Used by BIOS (e.g., for Event Logging)
FFFF8000 - FFFF8FFF 4 KB OEM logo or Scan Flash Area
FFF80000 - FFFF7FFF 480 KB Main BIOS Block
Configuration Data (ESCD) (DMI configuration data /
Plug and Play data)
Piezoelectric Speaker (N)
The onboard piezoelectric speaker is enabled by a jumper on pins 1 and 2 of the front panel
connector.
The onboard speaker can be disabled by removing the jumper. An outboard speaker can be
connected in its place by a jumper on pins 1 and 4.
This speaker provides error beep code information during the POST in the event that the computer
cannot use the video interface. The speaker is not connected to the audio subsystem and does not
receive output from the audio subsystem.
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19
Installation and Removal Procedures
This chapter explains how to remove and install the system board and its various component parts.
Safety Considerations
Before
removing or installing the system board or any other system component, observe
the following safety guidelines:
!
See Appendix B: Regulatory & Integration Information for safety requirements and
precautions.
Always follow the steps in the procedure in the correct order (i.e., as written).
Set up a log to record identification information about your computer.
Wear an antistatic wrist wrap and place the system board on a conductive foam pad when
working on it.
The procedures in this section assume that you are familiar with the general terminology
associated with personal computers and with the safety practices and regulatory
!
compliance required for using and modifying electronic equipment including but not limited
to the following:
Turn off system AC power by unplugging the AC power cord from the wall outlet.
Disconnect the computer from any telecommunications systems, networks, and modems
attached before performing any of the procedures described in this section else personal
injury or equipment damage can result.
Electrostatic discharge (ESD) can damage components. Therefore, protect against
electrostatic discharge (ESD) by performing the procedures described in this section only
!
at an ESD workstation or by wearing an antistatic wrist wrap and attaching it to a metal
part of your computer's chassis.
How to Install the DRM Fans and Processor Retention Mechanism
Dual Retention Mechanism (DRM) fans must be installed in the DRM end stands prior to
installing the processor retention mechanism on the system board.
i
The following procedure table combines the fan installation and processor retention
mechanism installation procedures.
Depending on the system, the fans can be mounted at different locations.
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21
Installation and Removal Procedures
Materials Required:
• 2 40mm fans
• 2 DRM stands (see Figure 3)
• 4 Fan screws (P/N 656880-002)
• 2 DRM tops (see Figure 3f)
• 2 Processors (CPUs) with attached heatsinks (see Figure 3g)
• 2 Retention clips (see Figure 3c)
• 1 Small tie wrap
Procedure To: Install DRM Fans and the Processor Retention Mechanism
Step Action
1 Observe the safety precautions in Safety Considerations at the beginning of this chapter.
2 Obtain one of the DRM stands.
22
OM08275
Figure 3.
A26361-D1065-Z120-1-7619
Installation and Removal Procedures
Step Action
3 Place the two Delta 40mm fans in the DRM stand pocket.
Position the fans with air flow away from the DRM.
Air
flow
SIDE VIEW
Figure 3a.
4 Orient power cables to the upper left corner as illustrated in Step 3.
4a Run the power cables down the left side of the DRM base as illustrated in Step 3.
4b Tie wrap the cables leaving approximately 2 inches of cable hanging beyond the base.
5 Attach fans in the DRM stand with 2 fan screws placed in opposite corners.
Position the fans with air flow away from the DRM.
OM08276
40mm Fans (2) Stacked
P1
Processor
Air Flow
Heat Sink
P0
Processor
Heat Sink
DRM Top
DIMM sockets
OM08277
Figure 3b.
IF more air flow is needed, then position 2 fans in the other DRM stand and secure them
with air flow into (towards) the DRM.
A26361-D1065-Z120-1-7619
23
Installation and Removal Procedures
Step Action
6 Apply a retention clip to the tops of the DRM bases.
Retention Clip
Keypost E1
Keypost E2
OM08278
Figure 3c.
7 Take the DRM base with 40mm fans attached and connect the two fans to the processor
fan headers on the system board.
40mm Fan
Headers
120mm Fan
Header
OM08279
Figure 3d.
8 Locate the Slot 2 processor connectors (A and B) and the four attachment screw holes
(C1-C4) shown in Figure 3e.
9 Properly position the processor retention mechanisms (D1 and D2) relative to the Slot 2
connectors.
10 Fit the keyposts (Step 6 illustration, callouts E1 and E2) on the processor retention
mechanisms into the holes in the system board base.
When properly seated, the bases of the processor retention mechanism should fit flush
with the system board.
11 Mount the DRM base to the system board with fan air flow pointing toward the back of the
chassis.
24
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Installation and Removal Procedures
Step Action
11a Use four 6-32x1/2 or 5/8 inch screws (chassis dependent) to attach DRM bases to system
board.
Torque screws to 6 inch pounds.
Retention
Mechanism (D1)
Keyposts (E3&E4)
Screw Holes
(C1/C2)
Processor
Connecter (B)
Processor
Connecter (A)
Retention
Mechanism (D2 )
Keyposts (E1&E2)
OM08280
Screw Holes (C3/C4)
Figure 3e.
12 Assemble the other DRM base, mount it on the other side of the Slot 2 connectors with
1/2 or 5/8 inch screws (chassis dependent).
13 Obtain the CPU/Heat sinks and the DRM tops.
DRM T op
Figure 3f.
A26361-D1065-Z120-1-7619
OM08281
25
Installation and Removal Procedures
Step Action
14 Secure one of the DRM tops to the processor with the holes facing toward the DIMM
sockets on the system board.
NOTE
The DRM tops snap into two recesses on the sides of the processor.
Retention
Clips
Holes
CPUs
DIMM Slots
Heatsinks
OM08282
Figure 3g.
15 Secure the other DRM top to the processor with the holes facing toward the DIMM slots.
NOTE
If using a Termination Card, then secure the DRM top to the card in the same
manner.
The DRM top is necessary to lock the Termination Card down and provide a way to
remove it from the connector by pulling it up and out.
26
A26361-D1065-Z120-1-7619
Installation and Removal Procedures
Step Action
16 Install the two processors (CPUs) in the DRM with the heat sinks facing the DIMM slots.
NOTE
Check hole placement of the DRM top relative to the retainer clip holes before
installation to ensure correct alignment. Use 4 ½ inch screws to secure tops to
retainer clip.
DRM T op
Retention Clip
DRM T op
Retention Hole
Heatsink
Dual Retention Mechanism (DRM)
DIMM Slots
Figure 3h.
A26361-D1065-Z120-1-7619
D
Processor (CPU) Connector
OM08285
27
Installation and Removal Procedures
Step Action
17 The final fan/CPU-heat sink/DRM assembly should appear as shown in the illustration
below.
CPU Heat sinks
DRM top
CPU
DRM base
DRM 40mm Fans
Figure 3i.
OM08283
28
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Installation and Removal Procedures
How to Install a Single Processor
Procedure To: Install a Single Processor
Step Action
1 Observe the safety precautions in Safety Considerations at the beginning of this chapter.
2 Turn OFF the computer.
3 Disconnect the computer's power cord and all external peripheral equipment.
4 Remove any peripherals that block access to the P0 processor's Slot 2 connector.
5 Remove the antistatic packaging from the new processor.
6 Secure a DRM top (D) to the processor by snapping the clips (H1 and H2) into the holes
on each side of the processor.
7 Orient the P0 processor (A) so that the heat sink (B) is closest to the DIMM sockets.
8 Slide the processor into the retention mechanism
H1
A
(E).
C
D
H2
B
E
F
E
DIMM Slots
G
OM08284
Figure 4.
9 Press down firmly on the processor until it is seated in the P0 processor Slot 2 connector
(G) and fasten with screws.
10 Lock down DRM top into retainer clips (F) on tops of DRM bases with 6-32x1/2 inch
screws (C).
A26361-D1065-Z120-1-7619
29
Installation and Removal Procedures
11 If there is no Termination Card in the P1 processor Slot 2 connector then install one using
the procedure entitled “How to Install a Termination Card”.
12 Replace any peripheral equipment that was removed in Steps 3 and 4 above.
13 Set the processor speed using the procedure entitled “How to Set the Processor Speed”.
How to Install a Second Processor
It may be necessary to reload the operating system to realize optimum performance
when upgrading from a single processor to a dual processor configuration.
i
If installing two processors, then the following values must be identical for both
processors:
L2 cache size and type (ECC); Operating voltages; Bus and Core frequencies.
The core stepping value may differ by one step (eg., C0 to C1). These values may be
determined by checking the parameters of the s-spec number, a five character code (eg.,
SL28R) printed on the top edge of the S.E.C.C.. For information about s-spec
parameters, refer to the Pentium II processor quick reference guide at the Intel
developer's web site.
Procedure To: Install a Second Processor
Step Action
1 Observe the safety precautions in Safety Considerations at the beginning of this chapter.
2 Turn OFF the computer.
3 Disconnect the computer's power cord and all external peripheral equipment and remove
any peripherals that block access to the P1 processor Slot 2 connector.
4 If there is a Termination Card installed in the P1 processor Slot 2 connector then remove it
using the procedure entitled “How to Remove a Termination Card”.
5 Remove the antistatic packaging from the second processor.
6 Secure a DRM top (E) to the processor by snapping the clips (F) into the holes on each
side of the processor.
7 Orient the P1 processor (A) so that the heat sink (B) faces the DIMM slots.
30
A26361-D1065-Z120-1-7619
Installation and Removal Procedures
Step Action
8 Slide the processor into the processor retention mechanism
E
F
A
B
C
(C).
D
D
OM08285
Figure 5.
9 Press down firmly on the processor until it is seated in the P1 Slot 2 connector (D) and
fasten with screws.
10 Replace any peripheral equipment that was removed in Step 3 above.
11 Set the processor speed using the procedure entitled “How to Set the Processor Speed”.
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31
Installation and Removal Procedures
How to Remove and Install the System Board
Refer to your chassis manual for detailed instructions on removal and installation.
System Board removal or installation should be done only by qualified technical
personnel. Disconnect the computer from its power source before performing the
!
removal or installation procedures noted here and before opening the computer.
Failure to observe these precautions may result in personal injury or equipment
damage.
Procedure To: Remove the
Step Action
1 Remove processor/heatsink/DRM assembly/Termination Card (if applicable) using
procedures “How to Remove a Processor” and “How to Remove a Termination Card”.
2 Remove the four screws attaching the DRM bases to the chassis.
3 Disconnect fan cables from fan headers
4 Locate the system board mounting screw holes in Figure 6 below.
5 Remove the 11 system board mounting screws.
6 Carefully extract the board by its edges.
7 Place board component-side up on a grounded, static free surface.
System Board
32
A26361-D1065-Z120-1-7619
Installation and Removal Procedures
3.300.20
12.70
12.30
6.20
3.35
0.00
0.30
0.00
0.45
5.10
Figure 6. System Board Mounting Screw Holes
9.06
2.59
11.40
6.74
2.80
11.55
11.30
9.31
OM07109
A26361-D1065-Z120-1-7619
33
Installation and Removal Procedures
How to Set Processor Speed
Selecting a processor speed greater than the rated speed of the installed processor(s)
may damage the processor(s).
!
Set processor speed after you have installed or upgraded the processor.
The procedure that follows assumes that:
• The computer is turned OFF
• The cover has been removed
• The configuration jumper block (J4J1) has the jumper set on pins 1-2 for normal mode
Procedure To: Set Processor Speed
Step Action
1 Observe the safety precautions in Safety Considerations at the beginning of this chapter.
2 Locate the configuration jumper block (see figure below).
3 Move the jumper to pins 2-3.
4 Replace the computer cover.
5 Turn ON the computer.
6 Allow the computer to boot up.
7 The computer starts the Setup Program.
8 Setup displays the Maintenance Menu.
9 Select the Processor Speed feature using the arrow keys.
10 Press the <ENTER> key.
11 Setup displays a pop-up screen with available processor speeds.
12 Select a speed using the arrow keys. (Choose 400 for a 400 MHz processor).
CAUTION
Do not exceed the rated speed or damage to the processor may result.
13 Press the <ENTER> key to confirm the speed.
14 The Maintenance Menu is re-displayed.
15 Press <F10> to save the current values then Exit Setup.
16 Turn OFF the computer.
17 Remove the computer cover.
18 Move the jumper back to pins 1-2 on the jumper block (J4J1) to restore normal operation.
19 Replace the cover.
20 Turn ON the computer.
21 Verify the processor speed in the startup information displayed by the BIOS.
34
A26361-D1065-Z120-1-7619
Jumper Settings
Do not move jumpers with the power ON. Always turn OFF the power and unplug the
power cord from the computer before changing jumpers.
!
There is no jumper setting for configuring the processor speed or bus frequency. The
feature for configuring the processor speed is in the Setup program using configure
i
mode.
Installation and Removal Procedures
A
1
1
B
A LAN enable/disable jumper block
B BIOS Setup configuration jumper block
Figure 7. Configuration Jumper Block
A26361-D1065-Z120-1-7619
OM07120
35
Installation and Removal Procedures
Table 11 describes the settings of the BIOS Setup configuration jumper block.
Table 11. BIOS Setup Configuration Jumper Settings
Mode Jumper Setting Description
Normal 1-2 The BIOS uses current configuration information and
Configure 2-3 After the POST runs, Setup runs automatically.
Recovery Off (jumper removed) The BIOS attempts to recover the BIOS from a
passwords for booting.
(Default)
The maintenance menu is displayed.
diskette.
A recovery diskette is required.
36
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Installation and Removal Procedures
How to Remove a Processor
Procedure To: Remove a Processor
Step Action
1 Observe the safety precautions in Safety Considerations at the beginning of this chapter.
2 Turn OFF the computer.
3 Disconnect the computer's power cord and all external peripheral equipment.
4 Remove any peripherals that block access to the processor.
5 Remove the screws from the DRM top (B)
6 Remove the processor (C) from the Slot 2 connector (D) by pulling the processor vertically
upward as shown by the arrows in the illustration below.
NOTE
Do not rock the processor (CPU) out of the DRM (E).
B
C
E
D
OM08286
Figure 8.
7 Store the processor in an antistatic package.
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37
Installation and Removal Procedures
How to Upgrade a Processor
If your system board has one microprocessor, then you can upgrade the computer by
replacing this processor with a faster one or by installing an application processor.
i
If your system board has two microprocessors, then you can upgrade by replacing these
processors with two faster processors.
If your operating system supports single processors only (such as Windows 95), then use
the sequence of procedures listed under “Upgrading a Single Processor”.
If your operating system supports dual-processing capability (such as Windows NT or
UNIX) and you will be running software programs that require additional processing
power, then use the sequence of procedures listed under “Upgrading from Single to Dual
Processors”.
If your computer has two microprocessors and you want more processing power, then
use the sequence of procedures listed under “Upgrading Dual Processors”.
If you install only one processor on a system board, then it must go in the boot (P0)
processor connector. In a single processor configuration, you must install a Termination
Card in the empty application (P1) processor connector to ensure proper operation of the
computer.
Procedure Reference Table
To Upgrade Use Procedures
a Single Processor How to Remove a Processor
How to Install a Single Processor
How to Set Processor Speed
from Single to Dual
Processors
Dual Processors How to Remove a Processor
How to Remove the Termination Card
How to Install a Second Processor
How to Set Processor Speed
How to Install a Single Processor
How to Install a Second Processor
How to Set Processor Speed
38
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Installation and Removal Procedures
(
)
How to Install the Termination Card
Procedure To: Install the Termination Card
Step Action
1 Observe the safety precautions in Safety Considerations at the beginning of this chapter.
2 Turn OFF the computer.
3 Disconnect the computer's power cord and all external peripheral equipment.
4 Remove any peripherals that block access to the processor Slot 2 connector.
5 Remove the screws from the DRM top as shown in Figure 9 below.
6 Secure a DRM top (A) to the Termination Card (B) by snapping the clips (C) into the holes
(or slots) in each side of the Card.
7 Slide the Termination Card
8 Ensure that the alignment notches
key in the P1 Processor Slot 2 connector (F) shown in the illustration below.
(B)
into the Retention Mechanism
E1 and E2
A
C
in the Termination Card fits over the
(D)
.
B
E1
E2
E
OM08287
F
D
Figure 9.
9 Press down firmly on the Termination Card until it is seated in the P1 slot connector.
NOTE
A Termination Card will never be used in the P0 slot connector.
Fasten the DRM cap into place with screws as shown in Figure 9 above.
A26361-D1065-Z120-1-7619
39
Installation and Removal Procedures
How to Remove the Termination Card
Procedure To: Remove the Termination Card
Step Action
1 Observe the safety precautions in Safety Considerations at the beginning of this chapter.
2 Turn OFF the computer.
3 Disconnect the computer's power cord and all external peripheral equipment.
4 Remove any peripherals that block access to the processor Slot 2 connector.
5 Remove the two screws holding the DRM Top over the P1 slot Termination Card.
6 Using the DRM top (A) as a handle, lift the Termination Card (B) up and out of the
processor Slot 2 connector (C) and the processor retention mechanism (D) as shown by
the arrows in the illustration below.
NOTE
Do not rock the Termination Card out of the connector - pull vertically upward.
A
B
40
C
D
OM08288
Figure 10.
A26361-D1065-Z120-1-7619
Installation and Removal Procedures
How to Install Memory
You can install from 32 MB to 2 GB of 100 MHz SDRAM in the system board DIMM
sockets.
i
Memory can be installed in one, two, three or four sockets.
DIMM size can vary between sockets.
The system board supports the following types of memory:
•
168-pin 3.3V DIMMs with gold-plated contacts
•
Single or double-sided DIMMs (See Table 4)
•
100 MHz SDRAM
DIMM socket locations are shown in Figure 1/Callout I.
A26361-D1065-Z120-1-7619
41
Installation and Removal Procedures
Procedure To: Install DIMMs
Step Action
1 Observe the safety precautions in Safety Considerations at the beginning of this
chapter.
2 Disconnect the computer's power cord and all external peripheral equipment.
3 Remove the computer cover and locate the DIMM sockets.
4 Holding the DIMM by its edges, remove it from its antistatic package.
5 Ensure that the clips at either end of the socket are pushed away from the socket.
6 Position the DIMM above the socket and align the two small notches in the bottom edge
of the DIMM with the keys in the socket.
1,2,3,4
OM08289
Figure 11.
7 Insert the bottom edge of the DIMM into the socket.
8 When the DIMM is seated, then press down on the top edge of the DIMM until the
retaining clips at the ends of the socket snap into place.
9 Make sure that the clips are firmly in place.
10 Replace the computer cover.
42
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Installation and Removal Procedures
How to Remove Memory
Procedure To: Remove DIMMs
Step Action
1 Observe the safety precautions in Safety Considerations at the beginning of this
chapter.
2 Turn OFF the computer.
3 Disconnect the computer's power cord and all external peripheral equipment.
4 Remove the computer cover and locate the DIMM sockets (See Figure 1/ Callout I).
5 Gently spread the retaining clips at each end of the socket.
6 The DIMM pops out of the socket.
7 Holding the DIMM by its edges, lift it away from the socket and store it in an antistatic
package.
How to Replace the CR2032 Lithium Battery (M)
When your computer is turned off, a lithium battery maintains the current time-of-day clock and the
current values in CMOS RAM.
The battery should last about seven years. When the battery begins to fail, it loses voltage; when
the voltage drops below a certain level, the Setup program settings stored in CMOS RAM (for
example, the date and time) might not be accurate. Replace the battery with an equivalent one.
WARNING!
!
Danger of explosion if the battery is incorrectly replaced. Replace only with the
same or equivalent type recommended by the equipment manufacturer. Discard
used batteries according to manufacturer's instructions.
ATTENTION!
!
Il y a danger d'explosion s'il y a remplacement incorrect de la batterie. Remplacer
uniquement avec une batterie du méme type ou d'un type recommandé par le
constructeur. Mettre au rébut les batteries usagées conformément aux instructions
du fabricant.
ADVARSEL!
!
Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske
med batteri af samme fabrikat og type. Levér det brugte batteri tilbage til
leverandøren.
ADVARSEL!
!
Lithiumbatteri - Eksplosjonsfare. Ved utskifting benyttes kun batteri som anbefalt
av apparatfabrikanten. Brukt batteri returneres apparatleverandøren.
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43
Installation and Removal Procedures
VARNING!
!
Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en
ekvivalent typ som rekommenderas av apparattillverkaren. Kassera använt batteri
enligt fabrikantens instruktion.
VAROITUS!
!
Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan
laitevalmistajan suosittelemaan tyyppiin. Hävitä käjtetty paristo valmistajan
ohjeiden mukaisesti.
Procedure To: Replace the Battery
Step Action
1 Observe the safety precautions in Safety Considerations at the beginning of this
chapter.
2 Record CMOS settings.
3 Turn OFF the computer.
4 Disconnect the computer's power cord and all external peripheral equipment.
5 Remove the computer cover. .
6 Locate the battery on the system board (See Figure 1/ Callout M)
7 Gently pry the battery free from its socket using a small flat bladed screwdriver. Note
the orientation of the “+” on the battery
B
A
C
OM08290
Figure 12.
8 Install the new battery in the socket, orienting the “+” as shown in the illustration.
9 Replace the computer cover.
10 Update CMOS records with any changes.
44
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Installation and Removal Procedures
How to Clear Passwords
This procedure assumes that the system board is installed in the computer and the
configuration jumper block (J4J1) has the jumper set on pins 1-2 for normal mode.
i
Procedure To: Clear Passwords
Step Action
1 Observe the safety precautions in Safety Considerations at the beginning of this
chapter.
2 Turn OFF the computer.
3 Disconnect the computer's power cord and all external peripheral equipment.
4 Remove the computer cover. .
5 Locate the configuration jumper block (See Figure 11, Configuration Jumper Block).
6 Move the jumper to pins 2-3.
7 Replace the cover and turn ON the computer.
8 Allow the computer to boot up.
9 The computer starts the Setup Program and the Maintenance Menu is displayed.
10 Use the arrow keys to select CLEAR PASSWORDS from the Maintenance Menu.
11 Press <ENTER> key.
12 Setup displays a pop-up screen requesting confirmation of clearing the password.
13 Select YES then Press <ENTER> key.
14 Setup displays the Maintenance Menu once again.
15 Press <F10> to save current values and EXIT Setup.
16 Turn OFF the computer.
17 Remove the computer cover.
18 On the Jumper Block (J4J1) move the jumper back to pins 1-2 to restore normal
operation.
19 Replace the computer cover.
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45
Using the BIOS Setup Program
This chapter provides an overview of the BIOS Setup Program. This program enables you to
change the BIOS settings of your computer.
Setup Program Modes
The Setup Program is used for viewing and changing the BIOS settings for your
computer.
i
It is recommended that you write down the current Setup settings for reference puproses.
Then when you make changes to these settings, update your record accordingly.
To access Setup, press the <F2> key after the Power-On Self Test (POST) memory test
begins but before the operating system boot begins.
Modes
The Setup Program has three modes of operation as shown in Table 12.
Table 12. Setup Program Modes
Operational mode Is used for ...
Normal Normal system operations.
Configure Configuring the processor speed.
Clearing passwords.
Recovery Recovering the BIOS data.
Mode Control
The Setup Program's operational mode is controlled by the setting of the configuration jumper block
J4J1. The jumper is usually set to Normal mode at the factory.
Table 13 shows the jumper settings for the different Setup modes.
Table 13. Jumper Settings
Mode Jumper Description
Normal 1-2 BIOS uses current configuration and passwords for booting.
Configure 2-3 After the POST runs, Setup starts and displays the
Maintenance Menu.
This menu displays options for setting the processor speed
and clearing passwords.
Recovery None BIOS recovers data from a recovery diskette.
Refer to Section 4 for information on BIOS data recovery
during an upgrade.
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47
Using the BIOS Setup Program
Setup Program Menus
This diagram illustrates the Setup Program's menu structure.
SETUP Menu
Menu Bar
Maint.
Features
Processor
Speed
Clear all
Passwords
Main Advanced Security Power Boot Exit
Processor 0 Type
Processor 1 Type
Processor Speed
Cache RAM
System Memory
Memory Bank 0
Memory Bank 1
Memory Bank 2
Memory Bank 3
Language
ECC Configuration
System Time
Plug and Play O/S
Reset Configuration
Data
Numlock
Fan Monitoring
Power LED Type
User
Password
Is
Admin.
Password
Is
Set User
Password
Set Admin.
Password
Clear
User
Password
User
Setup
Access
Unattended
Start
Power
Mgmt.
Inactivity
Timer
Hard
Drive
VESA
Video
Power
Down
Fan
Always
On
QuickBoot
Mode
Scan User
Flash Area
After
Power
Failure
On LAN
On Modem
Ring
On PME
First Boot
Device
Second
Boot
Device
Third Boot
Device
Fourth
Boot
Device
Fifth Boot
Device
Exit
Saving
Changes
Exit
Discarding
Changes
Load
Setup
Defaults
Load
Custom
Defaults
Save
Custom
Defaults
Discard
Changes
System Date
Submenus
Peripheral
Configuration
IDE Configuration
Floppy Options
DMI Event Logging
Video Configuration
Figure 13. Setup Program Menu Structure
48
OM08291
Hard Drive
Remov.
Devices
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Using the BIOS Setup Program
Menu Functionality
Table 14 explains the functionality associated with each Setup Program menu screen.
Table 14. Setup Menu Bar
Setup Menu Screen Functionality
Maintenance Specifies the processor speed and clears the Setup passwords.
This menu is only available in configure mode.
Main Allocates resources for hardware components.
Advanced Specifies advanced features available through the chipset.
Security Specifies passwords and security features.
Power Specifies power management features.
Boot Specifies boot options and power supply controls.
Exit Saves or discards changes to the Setup program options.
Menu Function Keys
Table 15 shows the function keys available for use with the Setup Program menu screens.
Table 15. Setup Function Keys
Setup Key Description
<F1> or <Alt-H> Brings up a help screen for the current item.
<Esc> Exits the menu.
<←> or <→> Selects a different menu screen.
<↑> or <↓> Moves cursor up or down.
<Home> or <End> Moves cursor to top or bottom of the window.
<PgUp> or <PgDn> Moves cursor to top or bottom of the window.
<F5> or <-> Selects the previous value for a field.
<F6> or <+> or <Space> Selects the next value for a field.
<F9> Load the default configuration values for the current menu.
<F10> Save the current values and exit Setup.
<Enter> Executes command or selects the submenu.
<+> or <-> Toggles to next or previous submenu selection.
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49
Using the BIOS Setup Program
Maintenance Menu
Use this menu to set the processor speed and clear Setup passwords. Setup only displays this
menu in configure mode.
Table 16. Maintenance Menu
Feature Options Description
Processor Speed 300 MHz
350 MHz
400 MHz
450 MHz
500 MHz
Clear All Passwords No options Clears the user and administrator passwords.
Specifies the processor speed in megahertz.
Main Menu
This menu reports processor and memory information. Use the Main Menu to configure the system
date, system time, floppy options, and IDE devices.
Table 17. Main Menu
Feature Options Description
Processor 0 Type No options Displays processor type.
Processor 1 Type No options Displays processor type.
Processor Speed No options Displays processor speed.
Cache RAM No options Displays size of second-level cache.
System Memory No options Displays the total amount of RAM on the system
Memory Bank 0,1,2,3 No options Specifies the size and type of DIMMs installed in
Language English (US) Selects the language used by the BIOS.
ECC Configuration None Specifies the ECC memory configuration.
System Time Hour, minute, and
second
System Date Month, day, and year Specifies the current date.
board.
each respective memory bank.
Specifies the current time.
50
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Using the BIOS Setup Program
Advanced Menu
Use this menu to set advanced features that are available through the chipset.
Table 18. Advanced Menu
Feature Options Description
Plug & Play O/S No (default)
Yes
Reset Configuration Data No (default)
Yes
Numlock Auto (default)
On
Off
Fan Monitoring Fan 4 J8L1
Fan 3 J8M1and J13A1
Fan 2 J2L1 and J14G1
Fan 1 J2K1 and J3J1
Power LED Type Single Color (default)
Dual Color
Peripheral Configuration
submenu
IDE Configuration
submenu
Floppy Options submenu No options When selected, displays the Floppy Options
No options Configures peripheral ports and devices.
No options Reports type of connected IDE device.
Specifies if a Plug and Play operating system
is being used.
No lets the BIOS configure all devices and
steers SCI to INT20 of the IOAPIC.
Yes lets the operating system configure Plug
and Play devices and steers SCI to INT9 of
the IOAPIC.
Not required with a Plug and Play operating
system.
Clears the BIOS configuration data on the
next boot.
Specifies the power on state of the Numlock
feature on the numeric keypad of the
keyboard.
Sets which fan headers are monitored.
Set this option based on what type of LED is
used for power LED on your chassis.
A single color LED is typically Green or OFF.
A dual color LED can be Green, Yellow or
OFF.
A single color LED will blink during
SUSPEND, whereas a two-color LED will turn
Yellow.
When selected, displays the Peripheral
Configuration submenu.
When selected, displays the Primary IDE
Master submenu.
submenu.
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Using the BIOS Setup Program
Feature Options Description
DMI Event Logging
submenu
Video Configuration
submenu
No options
No options
Configures DMI Events Logging.
When selected, displays the DMI Events
Logging submenu.
Configures video features.
When selected, displays the Video
Configuration submenu.
Peripheral Configuration Submenu
Use this submenu to configure the computer peripherals.
Table 19. Peripheral Configuration Submenu
Feature Options Description
Serial port A Disabled
Enabled
Auto (default)
Serial port B Disabled
Enabled
Auto (default)
Mode
Parallel port Disabled
Normal (default)
IrDA
ASK-IR
Enabled
Auto (default)
Configures serial port A.
Auto assigns the first free COM port, normally COM1, the
address 3F8h, and the interrupt IRQ4.
An * (asterisk) displayed next to an address indicates a
conflict with another device.
Configures serial port B.
Auto assigns the first free COM port, normally COM2, the
address 2F8h, and the interrupt IRQ3.
An * (asterisk) displayed next to an address indicates a
conflict with another device.
If either serial port address is set, that address will not appear
in the list of options for the other serial port.
Selects the mode for serial port B.
Configures the parallel port.
Auto assigns LPT1 the address 378h and the interrupt IRQ7.
An * (asterisk) displayed next to an address indicates a
conflict with another device.
Mode Output Only
Bi-directional
EPP
ECP (default)
52
Selects the mode for the parallel port.
Output Only operates in AT-compatible mode.
Bi-directional operates in bidirectional PS/2-compatible mode.
EPP is Extended Parallel Port mode, a high-speed
bidirectional mode.
ECP is Enhanced Capabilities Port mode, a high-speed
bidirectional mode.
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Feature Options Description
Audio Disabled
Enabled (default)
LAN Disabled
Enabled (default)
Embedded
PXE Support
Legacy USB
Support
Disabled
Enabled (default)
Disabled (default)
Enabled
Enables or disables the onboard audio subsystem.
Enables or disables the LAN.
Enables or disables the embedded PXE support.
Enables support for legacy universal serial bus.
IDE Configuration Submenus
This submenu is for configuring IDE devices, including:
•
Primary IDE master
•
Primary IDE slave
•
Secondary IDE master
•
Secondary IDE slave
Table 20. IDE Configuration Submenus
Feature Options Description
IDE Controller Disabled
Primary
Secondary
Both (default)
Hard Disk Pre-Delay Disabled (default)
3 Seconds
6 Seconds
9 Seconds
12 Seconds
15 Seconds
21 Seconds
30 Seconds
Configures the IDE Controller.
Both specifies that both the Primary and
Secondary channels are used.
Specifies hard disk pre-delay time.
Using the BIOS Setup Program
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53
Using the BIOS Setup Program
Feature Options Description
Type None
ATAPI Removable
CD-ROM
IDE Removable
Other ATAPI
User
Auto (default)
Cylinders 1 to XXXX Specifies number of disk cylinders.
Heads 1 to 16 Specifies number of disk heads.
Sectors 1 to 64 Specifies number of disk sectors.
Maximum Capacity No options Reports the maximum capacity for the hard
Multi-Sector
Transfers
Disabled
2 Sectors
4 Sectors
8 Sectors
16 Sectors (default)
LBA Mode Control Disabled
Enabled (default)
Transfer Mode Standard
Fast PIO 1
Fast PIO 2
Fast PIO 3
Fast PIO 4
FPIO 3 / DMA 1 (default)
Mastering
FPIO 4 / DMA 2
Ultra DMA
Disabled (default)
Mode 0
Mode 1
Mode 2
Specifies the IDE configuration mode for IDE
devices.
IDE Removable allows the cylinders, heads,
and sectors fields to be changed.
Auto automatically fills in the values for the
cylinders, heads, and sectors fields.
disk.
Value calculated from number of cylinders,
heads, and sectors.
Specifies number of sectors per block for
transfers from the hard drive to memory.
Check the hard drive's specifications for
optimum setting.
Enables or disables logical block addressing
(LBA) in place of the Cylinders, Heads, and
Sectors fields.
CAUTION
Changing the LBA Mode Control after a hard
drive has been formatted can corrupt data on
the drive.
Specifies method for transferring data between
the hard drive and system memory.
Specifies the ultra DMA mode for the hard
drive.
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Floppy Options Submenu
This submenu is used to configure diskette drives.
Table 21. Floppy Options Submenu
Feature Options Description
Floppy Disk
Controller
Diskette A: Disabled
Diskette B: Disabled (default)
Floppy Write
Protect
Disabled
Enabled (default)
360 KB, 5¼
1.2 MB, 5¼
720 KB, 3½
1.44/1.25 MB, 3½″ (default)
2.88 MB, 3½
360 KB, 5¼
1.2 MB, 5¼
720 KB, 3½
1.44/1.25 MB, 3½
2.88 MB, 3½
Disabled (default)
Enabled
″
″
″
″
″
″
″
″
″
Configures the diskette drive controller.
Specifies the capacity and physical size of
diskette drive A.
Specifies the capacity and physical size of
diskette drive B.
Disables or enables write protect for the
diskette drive(s).
Using the BIOS Setup Program
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55
Using the BIOS Setup Program
DMI Event Logging Submenu
Use this submenu to configure the DMI event logging features.
Table 22. DMI Event Logging Submenu
Feature Options Description
Event log capacity No options Indicates if there is space available in the event
Event log validity No options Indicates if the contents of the event log are
View DMI event log No options Enables viewing of DMI event log.
Clear all DMI event logs
Event Logging Disabled
ECC Event Logging Disabled
Mark DMI events as read No options Marks all DMI events as read.
No (default)
Yes
Enabled (default)
Enabled (default)
log.
valid.
Clears the DMI Event Log after rebooting.
Enables logging of DMI events.
Enables logging of ECC events.
Video Configuration Submenu
Use this submenu to configure video features.
Table 23. Video Configuration Submenu
Feature Options Description
Palette Snooping
Disabled (default)
Enabled
Controls the ability of a primary PCI graphics
controller to share a common palette with an
ISA add-in video card.
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Using the BIOS Setup Program
Security Menu
Use this menu to set passwords and security features.
Table 24. Security Menu
Feature Options Description
User Password Is No options Reports if there is a user password
Administrator Password Is No options Reports if there is an administrator
Set User Password Password can be up to
seven alphanumeric
characters.
Set Administrative Password Password can be up to
seven alphanumeric
characters.
Clear User Password No options Pressing <Enter> clears the user
User Setup Access None
View Only (default)
Limited Access
Full
Unattended Start Disabled (default)
Enabled
set.
password set.
Specifies the user password.
Specifies the administrator password.
password.
Enables or disables user access to
the Setup program.
Enables the unattended start feature.
When enabled, the computer boots,
but the keyboard is locked.
The user must enter a password to
unlock the computer or boot from a
diskette.
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Using the BIOS Setup Program
Power Menu
Use this menu to set power management features.
Table 25. Power Menu
Feature Options Description
Power Management Disabled
Inactivity Timer
Hard Drive Disabled
VESA Video Power
Down
Fan Always On
Enabled (default)
Off (default)
1 Minute
5 Minutes
10 Minutes
20 Minutes
30 Minutes
60 Minutes
120 Minutes
Enabled (default)
Disabled
Enabled (default)
No (default)
Yes
Enables or disables the BIOS power management
feature.
Specifies the amount of time before the computer
enters standby mode.
Enables power management for hard disks during
standby and suspend modes.
Enables power management for video during
standby and suspend modes.
Select YES to force a fan to remain on when the
system is in a power-managed state.
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Using the BIOS Setup Program
Boot Menu
Use this menu to specify the boot features and the boot sequence.
Table 26. Boot Menu
Feature Options Description
QuickBoot Mode Disabled
Enabled (default)
Scan User Flash
Area
After Power Failure Stay Off
On LAN Stay Off
On Modem Ring Stay Off (default)
On PME Stay Off (default)
First Boot Device
Second Boot Device
Third Boot Device
Fourth Boot Device
Fifth Boot Device
Hard Drive submenu No options Lists available hard drives.
Removable Devices
submenu
Disabled (default)
Enabled
Last State (default)
Power On
Power On (default)
Power On
Power On
Removable devices
Hard Drive
ATAPI CD-ROM
Drive
Network boot
LANDesk Service
Agent
No options Lists available removable devices.
Enables the computer to boot without running
certain POST tests.
Enables the BIOS to scan the flash memory for
user binary files that are executed at boot time.
Specifies how the computer responds following a
power failure.
Stay Off keeps power OFF until the power button
is pressed.
Last State restores previous power state before a
power failure.
Power On restores power without restoring
previous power state.
Specifies how the computer responds to a LAN
wakeup event when the power is OFF.
Specifies how the computer responds to an
incoming call on an installed modem when the
power is off.
Specifies how the computer responds to a PCI
power management enable event when the power
is OFF.
Specifies the boot sequence from the available
devices. To Specify Boot Sequence:
1. Select the boot device with <↑> or <↓>.
2. Press <+> to move the device up the list or <> to move the device down the list.
3. The operating system assigns a drive letter to
each boot device in the order listed.
4. Changing the order of the devices changes
the drive lettering.
When selected, displays the Hard Drive submenu.
When selected, displays the Removable Devices
submenu.
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Using the BIOS Setup Program
Boot Options
In the Setup program, the user can choose to boot from a diskette drive, hard drive, CD-ROM, or the
network. The default setting is for the diskette drive to be the primary boot device and the hard drive
to be the secondary boot device.
Booting from CD-ROM is supported in compliance to the El Torito bootable CD-ROM format
specification. Under the Boot menu in the Setup program, CD-ROM is listed as a boot device. Boot
devices are defined in priority order.
The network can be selected as a boot device. This selection allows booting from a network add-in
card or on-board LAN with a remote boot ROM installed. The LANDesk Service Agent can be used
to perform service boots if the network is equipped with a suitable LANDesk Configuration Manager
server.
Hard Drive Submenu
Use this submenu to configure the boot sequence for hard drives.
Table 27. Hard Drive Submenu
Options Description
Installed hard drive
Bootable ISA Cards
Specifies the boot sequence for the hard drives attached to the computer.
To Specify Boot Sequence:
1. Select the boot device with <↑> or <↓>.
2. Press <+> to move the device up the list or <-> to move the device
down the list.
3. The operating system assigns a drive letter to each device in the order
listed.
4. Changing the order of the devices changes the drive lettering.
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Using the BIOS Setup Program
Removable Devices Submenu
Use this submenu to configure the boot sequence for removable devices.
Table 28. Removable Devices Submenu
Options Description
Legacy Floppy Drives Specifies the boot sequence for the removable devices attached to the
computer.
To Specify Boot Sequence:
1. Select the boot device with <↑> or <↓>.
2. Press <+> to move the device up the list or <-> to move the device
down the list.
3. The operating system assigns a drive letter to each device in the
order listed.
4. Changing the order of the devices changes the drive lettering.
Exit Menu
Use this menu to exit the Setup Program, save changes, load defaults, and save defaults.
Table 29. Exit Menu
Feature Description
Exit Saving Changes Exits and saves the changes in CMOS RAM.
Exit Discarding
Changes
Load Setup Defaults Loads the default values for all the Setup options.
Load Custom Defaults Loads the custom defaults for Setup options.
Save Custom Defaults Saves the current values as custom defaults.
Discard Changes Discards changes without exiting Setup.
Exits without saving any changes made in Setup.
Normally, the BIOS reads the Setup values from flash memory.
If this memory is corrupted, then the BIOS reads the custom defaults.
If no custom defaults are set, then the BIOS reads the factory defaults.
The option values present when the computer was turned on are used.
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61
Using the BIOS Features
The system board uses an Intel/Phoenix BIOS, which is stored in flash memory and can be
upgraded using a disk-based program.
The flash memory also contains the BIOS Setup Program (described in Chapter 3), Power-On Self
Test (POST), Advanced Power Management (APM), the PCI auto-configuration utility, and
Windows 98-ready Plug and Play code.
This system board supports system BIOS shadowing, allowing the BIOS to execute from 64-bit
onboard write-protected DRAM.
The BIOS displays a message during POST identifying the type of BIOS and the revision code. The
initial production BIOS is identified as 4M4SG0X0.86E.
How to Prepare for the Upgrade
Before attempting to upgrade the BIOS, prepare for the upgrade process as follows:
•
Obtain the BIOS upgrade file
•
Record the current BIOS settings
•
Create a bootable floppy disk
•
Create the BIOS upgrade floppy disk
Obtaining the BIOS Upgrade File
Use the BIOS upgrade file to upgrade to a new version of the BIOS.
The BIOS upgrade file is a compressed self-extracting archive that contains all the files you need to
upgrade the BIOS. The file contains the following elements:
•
New BIOS files
•
BIOS recovery files
•
Intel Flash Memory Update Utility
You can obtain the BIOS upgrade file from the Intel World Wide Web site:
http://www.intel.com.
Please review the instructions distributed with the update utility before attempting a BIOS
upgrade.
i
The Intel Flash Memory Update Utility allows you to:
•
Upgrade the BIOS in flash memory.
•
Update the language section of the BIOS.
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63
Using the BIOS Features
Recording the Current BIOS Settings
1. Boot the computer and press <F2> when you see the message:
Press <F2> Key if you want to run SETUP
Do not skip step 2. You will need these settings to configure your computer at the end of
the upgrade procedure.
i
2. Write down the current settings in the BIOS Setup program.
Creating a Bootable Floppy Disk
If your drive A is an LS-120 diskette drive, then you must use a 1.44-MB floppy diskette
as the bootable BIOS upgrade floppy disk. The computer is unable to recover a BIOS
i
from an LS-120 diskette.
Procedure To: Create a Bootable Floppy Disk
Step Action
1 Use a DOS or Windows 95 system to create the floppy disk.
2 Insert a floppy disk in floppy drive A.
3or
for a formatted floppy disk, type:
4 Press <Enter>.
sys a:
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Using the BIOS Features
Creating the BIOS Upgrade Floppy Disk
Obtain the BIOS upgrade and then use the procedure in the following table.
Procedure To: Create the BIOS Upgrade Floppy Disk
Step Action
1 Copy the BIOS upgrade file to a temporary directory on your hard disk.
2 From the C:\ prompt, change to the temporary directory.
3 To extract the file, type the name of the BIOS upgrade file, for example:
4 Press
5 Read the
<Enter>
LICENSE.TXT, BIOINSTR.TXT, BIOS.EXE
BIOINSTR.TXT
6 Insert a bootable floppy disk into drive A.
7 To extract the
holds the
8 Press
9 The floppy disk now holds the new BIOS files, the Intel Flash Update Utility, and the
<Enter>
recovery files.
. The extracted file contains the following files:
LICENSE.TXT
BIOS.EXE
BIOS.EXE
.
file, which contains the software license agreement and the
file, which contains the instructions for the BIOS upgrade.
file to the floppy disk, change to the temporary directory that
file and type:
BIOS A:
10006BI1.EXE
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65
Using the BIOS Features
Upgrading the BIOS
Procedure To: Upgrade the BIOS
Step Action
1 Boot the computer with the BIOS upgrade floppy disk in drive A.
2 The flash memory update utility screen appears.
3 Select Update Flash Memory From a File.
4 Select Update System BIOS.
5 Press <Enter>.
6 Use the arrow keys to select the correct .bio file.
7 Press <Enter>.
8 When the utility asks for confirmation to flash the new BIOS into memory.
Then select
9 Press <Enter>.
10 When the utility displays the message
Then remove the floppy disk.
11 Press <Enter>.
12 As the computer boots, check the BIOS identifier (version number) to ensure that the
upgrade was successful.
13 When you see the message
Then Press
14 For proper operation, load the BIOS Setup Program defaults by pressing <F9>.
15 Press <Enter> to accept the defaults.
16 Set the options in the BIOS Setup Program to the settings you wrote down before the
BIOS upgrade.
17 Press
18 Press <Enter> to accept the settings.
19 Turn OFF the computer and reboot.
Continue with Programming.
Press <F2> Key if you want to run SETUP
<F2>
to enter the BIOS Setup Program.
<F10>
to save the settings.
upgrade is complete.
66
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Using the BIOS Features
Recovering the BIOS
Although unlikely, if an interruption should occur during a BIOS upgrade, the BIOS could be
damaged. If a BIOS upgrade interruption does occur, then follow the procedure in the following
table to recover the BIOS. This procedure uses recovery mode for the BIOS Setup Program.
Because of the small amount of code available in the non-erasable boot block area, there
is no video support. You will not see anything on the screen during this procedure.
i
Monitor the procedure by listening to the speaker and looking at the floppy drive LED.
Procedure To: Recover the BIOS
Step Action
1 Turn OFF the computer.
2 Disconnect the computer's power cord and disconnect all external peripherals.
3 Remove the computer cover and locate the configuration jumper block.
4 Remove the jumper from the BIOS Setup configuration jumper block (J4J1) to set
recovery mode for Setup. See page 35
jumper block.
5 Insert the bootable BIOS upgrade floppy disk into floppy drive A.
6 Replace the computer cover, connect the power cord, turn ON the computer, and allow it
to boot. The recovery process will take a few minutes.
7 Listen to the speaker.
Two beeps and the end of activity in drive A indicate successful BIOS recovery.
A series of continuous beeps indicates failed BIOS recovery.
8 If recovery fails, return to Step 1 and repeat process.
9 If recovery is successful, turn off the computer and disconnect its power cord.
10 Remove the computer cover and continue with the following steps.
11 Replace the jumper back on to pins 1-2 on the BIOS Setup configuration jumper block
(J4J1) to set normal mode for Setup.
12 Leave the upgrade disk in drive A, replace the computer cover, and connect the
computer's power cord.
13 Turn on the computer and continue with the BIOS upgrade procedure.
for the location of the BIOS Setup configuration
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67
Using the BIOS Features
Changing the BIOS Language
You can use the BIOS upgrade utility to change the language the BIOS uses for messages and the
Setup program. Use a bootable floppy disk containing the Intel Flash Memory Update Utility and
language files (see “Upgrading the BIOS” on Page 70).
Procedure To: Change the BIOS Language
Step Action
1 Boot the computer with the bootable floppy disk in drive A.
2 The BIOS upgrade utility screen appears.
3 Select Update Flash Memory From a File.
4 Select Update Language Set.
5 Press <Enter>.
6 Select drive A and use the arrow keys to select the correct .lng file.
7 Press <Enter>.
8 When the utility asks for confirmation that you want to flash the new language into
memory, select
9 Press <Enter>.
10 When the utility displays the message upgrade is complete, remove the floppy
disk.
11 Press <Enter>.
12 The computer will reboot and the changes will take effect.
Continue with Programming.
Plug and Play: PCI Autoconfiguration
The BIOS can be set to automatically configure PCI devices and Plug and Play devices. PCI
devices may be onboard or add-in cards. Plug and Play devices are add-in cards built to meet the
Plug and Play specification.
Autoconfiguration lets a user insert or remove PCI or Plug and Play cards without having to
configure the system. When a user turns on the system after adding a PCI or Plug and Play card,
the BIOS can automatically configure interrupts, the I/O space, and other system resources. Any
interrupts set to Available in Setup are considered to be available for use by the add-in card.
PCI interrupts are distributed to available ISA interrupts that have not been assigned to an ISA card
or to system resources. The assignment of PCI interrupts to ISA IRQs is dependent upon a number
of factors including type and number of add-in cards, slot selection, and operating system.
Any change to the hardware or system software configuration can cause a change to the interrupt
configuration of existing devices. PCI devices can share an interrupt, but an ISA device cannot
share an interrupt allocated to PCI or to another ISA device. Autoconfiguration information is stored
in the extended system configuration data (ESCD) format.
For information about the versions of PCI and Plug and Play supported by this BIOS, see Plug and
Play Specification Version 1.0a, May 5, 1994, Compaq Computer Corp., Phoenix Technologies Ltd.,
Intel Corporation.
68
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Using the BIOS Features
ISA Plug and Play
If Plug and Play operating system is selected in Setup, then the BIOS autoconfigures only ISA Plug
and Play and PCI cards that are required for booting (IPL devices). If Plug & Play OS is not
selected in Setup, then the BIOS autoconfigures all Plug and Play ISA and PCI cards.
If Plug & Play OS is selected in Setup, then PCI or PnP add-in cards that are not
required for booting will not be available unless they are initialized and assigned
i
resources by the operating system or other program.
ISA Legacy Devices
ISA legacy devices are not autoconfigurable, therefore the resources for them must be reserved in
the Setup program or with an ISA configuration utility.
PCI IDE Support
If Auto is selected as a primary or secondary IDE device in Setup, then the BIOS automatically sets
up the two local-bus IDE connectors with independent I/O channel support. The IDE interface
supports PIO Mode 3, PIO Mode 4, and Ultra DMA hard drives and recognizes any ATAPI devices,
including CD-ROM drives, tape drives, and LS-120 diskette drives.
The BIOS determines the capabilities of each drive and configures them so as to optimize capacity
and performance. To take advantage of the high-capacity storage devices, hard drives are
automatically configured for logical block addressing (LBA) and to PIO Mode 3, PIO Mode 4, or Ultra
DMA depending on the capability of the drive.
To override the autoconfiguration options, use the specific IDE device options in Setup. The ATAPI
specification recommends that ATAPI devices be configured as shown in Table 32.
Table 30. Recommendations for Configuring an ATAPI Device
Primary Cable Secondary Cable
Configuration
Normal, no ATAPI ATA
Disk and CD-ROM for enhanced IDE systems ATA ATAPI
Legacy IDE system with only one cable ATA ATAPI
Enhanced IDE with CD-ROM and a tape or two
CD-ROMs
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Drive 0 Drive 1 Drive 0 Drive 1
ATA ATAPI ATAPI
69
Using the BIOS Features
Desktop Management Interface (DMI)
Desktop Management Interface (DMI) is an interface for managing computers in an enterprise
environment. The main component of DMI is the management information format (MIF) database,
which contains information about the computing system and its components such as system types,
capabilities, operational status, and installation dates for system components.
The MIF database defines the data and provides the method for accessing this information.
The BIOS stores and reports the following DMI information:
• BIOS data, such as the BIOS revision level
• Fixed-system data, such as peripherals, serial numbers, and asset tags
• Resource data, such as memory size, cache size, and processor speed
• Dynamic data, such as event detection and error logging
•
OEMs can use a utility that programs flash memory so the BIOS can report on system and chassis
information. This utility is available through Intel sales offices.
DMI does not work directly under non-Plug and Play operating systems (e.g., Windows NT 4.0).
However, the BIOS supports a DMI table interface for such operating systems. Using this support,
a DMI service-level application running on a non-Plug and Play OS can access the DMI BIOS
information.
Advanced Power Management (APM)
The BIOS supports APM and standby mode. The energy saving standby mode can be initiated in
the following ways:
• Time-out period specified in Setup
• From the operating system, such as the Suspend menu item in Windows 98
In standby mode, the system board reduces power consumption by using SMM capabilities,
spinning down hard drives, and reducing power to or turning off VESA DPMS-compliant monitors.
Power-management mode can be enabled or disabled in Setup.
While in standby mode, the system retains the ability to respond to external interrupts and service
requests, such as incoming faxes or network messages. Any keyboard or mouse activity brings the
system out of standby mode and immediately restores power to the monitor.
The BIOS enables APM by default; but the operating system must support an APM driver for the
power-management features to work. Windows 98 supports the power management features upon
detecting that APM is enabled in the BIOS.
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Using the BIOS Features
Advanced Configuration and Power Interface (ACPI)
ACPI gives the operating system direct control over the power management and Plug and Play
functions of a computer. ACPI requires an ACPI-aware operating system. ACPI features include:
•
Plug and Play (including bus and device enumeration) and APM functionality normally
contained in the BIOS
•
Power management control of individual devices, add-in boards (some add-in boards may
require an ACPI-aware driver), video displays, and hard disk drives
•
A Soft-off feature that enables the operating system to power off the computer
•
Support for multiple wake up events (see Table 32)
•
Support for a front panel power and sleep mode switch. Table 31 describes the system states
based on how long the power switch is pressed, depending on how ACPI is configured with an
ACPI-aware operating system
Table 31. Effects of Pressing the Power Switch
If the system is in this state… …and the power switch is
pressed for
Off Less than four seconds Power on
On Less than four seconds Soft off/Suspend
On More than four seconds Fail safe power off
Sleep Less than four seconds Wake up
System States and Power States
Under ACPI, the operating system directs all system and device power state transitions. The
operating system puts devices in and out of low-power states based on user preferences and
knowledge of how devices are being used by applications. Devices that are not being used can be
turned off. The operating system uses information from applications and user settings to put the
system as a whole into a low-power state.
…the system enters this
state
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71
Using the BIOS Features
Wake Up Devices and Events
The table below describes which devices or specific events can wake the computer from specific
states. Sleeping states S4BIOS and S5 are the same for the wake up events.
Table 32. Wake Up Devices and Events
These devices/events can wake up the computer… …from this state
Power switch S1, S4BIOS, S5
RTC alarm S1, S4BIOS, S5
LAN S1, S4BIOS, S5
Modem S1, S4BIOS, S5
IR command S1
USB S1
PS/2 keyboard S1
PS/2 mouse S1
Sleep button S1
Plug and Play
In addition to power management, ACPI provides controls and information so that the operating
system can facilitate Plug and Play device enumeration and configuration. ACPI is used only to
enumerate and configure system board devices that do not have other hardware standards for
enumeration and configuration. PCI devices on the system board, for example, are not enumerated
by ACPI.
BIOS Support
The BIOS supports both APM and ACPI. If the board is used with an ACPI-aware operating, the
BIOS provides ACPI support. Otherwise, it defaults to APM support.
Language Support
Five languages are available: American English, German, Italian, French, and Spanish. The default
language is American English unless another language is programmed into the BIOS using the flash
memory update utility.
The BIOS includes extensions to support the Kanji character set and other non-ASCII character
sets. Translations of other languages may become available at a later date.
OEM Logo or Scan Area
A 4 KB flash-memory user area at memory location FFFF8000h-FFFF8FFFh is for displaying a
custom OEM logo during POST. A utility is available from Intel to assist with installing a logo into
the flash memory. Contact Intel customer support for further information.
72
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Using the BIOS Features
USB Legacy Support
USB legacy support enables USB keyboards and mice to be used even when no operating system
USB drivers are in place. By default, USB legacy support is disabled and is only intended to be
used in accessing BIOS Setup and installing an operating system that supports USB.
This sequence describes how USB legacy support operates in the default (disabled) mode.
1. When you power up the computer, USB legacy support is disabled.
2. POST begins.
3. USB legacy support is temporarily enabled by the BIOS. This allows you to use a USB
keyboard to enter the Setup program or the maintenance mode.
4. POST completes and disables USB legacy support (unless it was set to Enabled while in
Setup).
5. The operating system loads. While the operating system is loading, USB keyboards and mice
are not recognized. After the operating system loads the USB drivers, the USB devices are
recognized.
To install an operating system that supports USB, enable USB Legacy support in BIOS Setup and
follow the operating system's installation instructions. Once the operating system is installed and
the USB drivers configured, USB legacy support is no longer used. USB Legacy Support can be left
enabled in BIOS Setup if needed.
If USB legacy support is enabled, then do not mix USB and PS/2 keyboards and mice.
For example, do not use a PS/2 keyboard with a USB mouse, or a USB keyboard and a
i
PS/2 mouse.
Do not use USB devices with an operating system that does not support USB. USB
legacy is not intended to support the use of USB devices in a non USB operating system.
USB legacy support is for keyboards and mice only. Hubs and other USB devices are
not supported.
BIOS Security Features
The BIOS includes security features that restrict access to the BIOS Setup program and who can
boot the computer. An administrator password and a user password can be set for the Setup
program and for booting the computer using options on the Security Menu (see Figure 13)
following restrictions:
Password Modes
•
If in Administrator Mode, then the administrator password gives unrestricted access to view
and change all Setup options in the Setup Program.
•
If in User Mode, then the user password gives restricted access to view and change Setup
options in the Setup Program.
A26361-D1065-Z120-1-7619
with the
73
Using the BIOS Features
Password Sets
• If only the administrator password is set, then press the <ENTER> key at the password prompt
of the Setup Program to allow the user restricted access to Setup.
• If both administrator and user passwords are set then users can enter either password to
access Setup and privileges afforded are dependent upon which password is entered.
• When the user password is set, then who can boot the computer is restricted and the password
prompt will be displayed before the computer is booted.
• If only the administrator password is set then the computer boots without asking for a
password.
• If both passwords are set then enter either password to boot the computer.
Table 33 shows the effects of setting the administrator and user passwords. This table is for
reference only and is not displayed on the screen.
Table 33. Administrator and User Password Functions
Password Set Administrator
Mode
Neither Can change all
Administrator
only
User only N/A Can change
Administrator
and user set
* If no password is set, then any user can change all Setup options.
options *
Can change all
options
Can change all
options
User Mode Setup Options Password to
Enter Setup
Can change
all options *
Can change
a limited
number of
options
all options
Can change
a limited
number of
options
None None None
Administrator
Password
Enter
Password
Clear User
Password
Administrator
Password
Enter
Password
Administrator None
User User
Administrator
or user
Password
During
Boot
Administrato
r or user
Recovering BIOS Data
Some types of failure can destroy the BIOS. For example, the data can be lost if a power outage
occurs while the BIOS is being updated in flash memory. The BIOS can be recovered from a
diskette using the BIOS recovery mode
To create a BIOS recovery diskette, a bootable diskette must be created and the recovery files
copied to it. The recovery files are available from Intel. Contact Intel customer support for further
information.
If the computer is configured to boot from an LS-120 diskette), then the BIOS recovery
diskette must be a standard 1.44 MB diskette, not a 120 MB diskette.
i
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Technical Reference
This chapter describes the location, pinouts, and signals associated with the various types of
connectors used in the system board.
Front Panel Connectors (L)
The illustration below shows the location of the front panel connectors. Table 34 indicates the
functional purpose of each connector identified in the illustration.
21654810 1312 15 17 201918 2422 25 2726
A
A Speaker D Hard disk drive activity LED
B Reset switch E Infrared port
C Power/sleep LED F Power switch
Figure 14. Front Panel Connectors
A26361-D1065-Z120-1-7619
BC DE
F
OM07112
75
Technical Reference
Table 34. Front Panel I/O Connectors
Call-out Connector/Function Pin Signal Name
A SPEAKER/
Provides error beep code information during the
POST and is not connected to audio
subsystem.
B RESET SWITCH/
Resets the system board and initiates running
the POST.
NONE 7 Key
C POWER/SLEEP LED/
Displays indicating if computer is ON or in
sleep mode.
NONE 11 Key
D HARD DISK DRIVE ACTIVITY LED/
Visually indicate if data is being read from or
written to an IDE or SCSI hard drive.
NONE 16 Key
E INFRARED PORT/
Can be configured to support an IrDA module
enabling data files to be transferred to/from
various portable devices.
NONE 23
F POWER ON SWITCH/
Enables system to be powered ON or OFF.
1
BUZZER_B1
2
BUZZER_A2
3
Key
4
+5V
56FP_RESET#
Ground
8
GREEN/YELLOW_INV
9
Key
10
YEL_BLNK#
12
+5V
13
DASDACTIVE#
14
Key
15
+5V
17
IRLS1
18
IRTX
19
Ground
20
IRRX
21
Key
22
+5V
Key
+5V
24
No Connect (N.C.)
25
2627Ground
SWITCH
Speaker
Connect pins 1 and 2 to use the built-in speaker. Leave the jumper off pins 1 and 2 and connect the
external speaker to J12A1 to use the external speaker. See page 86
speaker connector.
76
for the location of the external
A26361-D1065-Z120-1-7619
Technical Reference
Reset Switch
Pins 5 and 6 can be connected to a momentary SPST type switch that is normally open.
When the switch is closed, then the system board resets and runs the POST.
Power/Sleep LED
These pins can be connected to a multicolor LED that lights when the computer is powered on or in
sleep mode. The possible states for this LED are:
If state = OFF, then Power is OFF.
If state = GREEN, then Power is ON.
If state = YELLOW, then in Sleep Mode.
Hard Drive Activity LED
These pins can be connected to an LED to provide a visual indicator that data is being read from or
written to an IDE or SCSI hard drive, as well as add-in cards that provide an activity signal. For the
LED to function properly, the IDE drive must be connected to the onboard IDE controller. This LED
will also show activity for devices connected the the hard drive LED header.
Infrared Port
Serial Port 2 can be configured to support an IrDA module connected to the front panel infrared
connector. After the IrDA interface is configured, files can be transferred to or from portable devices
such as laptop computers, PDAs, and printers using application software.
Power Switch
Pins 26 and 27 can be connected to a front panel power switch. Because of debounce circuitry on
the system board, the switch must pull the SW_ON# pin to ground for at least 50 ms to signal the
power supply to switch on or off. At least two seconds must pass before the power supply will
recognize another on/off signal.
When BIOS is active, the power switch is recognized immediately. When BIOS is not
active (POST, system lock-up) then the power switch is only recognized if held in for four
i
seconds.
If you need to turn off the computer during POST, then hold the power switch in for four
seconds; otherwise the computer will not switch off.
!
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77
Technical Reference
Front Panel Pin Connector Mapping
This table describes the operational effect(s) of connecting various devices such as switches and
LED lights to the Front Panel pin connectors.
Table 35. Pin Connector Functionality
If pin numbers .... are connected to a .... Then the operational effect is ....
5,6 Momentary SPST type switch that is
8,9,10,11 Multicolor LED that lights when the
12,13,14,15 LED
17,18,19,20,21,22 IrDA module TO enable transfer of files to or from
26,27 Front Panel power switch that pulls
normally OPEN.
computer is ON.
OR in Sleep Mode.
If using a single color LED, it will
blink during suspend state.
There are two SCSI LED headers
(J10E1 and J10A1) on the board.
If you connect a SCSI card's LED
cable to either of them and connect
the Hard Drive Activity LED on the
front panel, then the LED will work
either when the IDE hard drive
the SCSI drive is operating.
When using a SCSI controller card
with an activity signal, connect a
cable from the card's drive activity
header to header J10E1 or J10A1.
the SW_ON# pin to ground for at
least 50 ms
or
To reset the system board and run
the POST when the switch is closed.
To visually display one of three
states:
OFF = Power OFF
Green = Power ON
Yellow = Sleep
To provide a visual indication of data
being read from or written to an IDE
or SCSI hard drive.
AND show activity for devices
connected to the hard drive LED
header.
NOTE
IDE drive must be connected to the
onboard IDE controller.
portable devices such as laptop
computers, PDAs, and printers
using applications software.
TO turn the computer's power
supply ON or OFF.
NOTE
At least 2 seconds must
pass before the power
supply will recognize another
ON/OFF signal.
CAUTION
IF you need to turn OFF the
computer during POST
THEN hold the power switch
IN for 4 seconds
ELSE the computer will not
switch OFF.
78
A26361-D1065-Z120-1-7619
Back Panel Connectors (E)
The figure below shows location of the back panel connectors.
Technical Reference
A
C
D
BF
A PS/2 Keyboard or Mouse G Serial Port B
B PS/2 Keyboard or Mouse H LAN
C USB Port 1 I Audio Line Input
D USB Port 0 J Audio Line Output
E Parallel Port K Microphone Input
F Serial Port A
Figure 15. Back Panel Connectors
A26361-D1065-Z120-1-7619
E
G
I
J
HK
OM07122
79
Technical Reference
Keyboard and Mouse Interface
PS/2 keyboard and mouse connectors are located on the back panel (see Figure 15/Callouts A
and B). The 5V lines to these connectors are protected with a PolySwitch circuit that, like a selfhealing fuse, reestablishes the connection after an over-current condition is removed.
The mouse and keyboard can be plugged into either of the PS/2 connectors. Power to
the computer should be turned off before a keyboard or mouse is connected or
i
disconnected.
The keyboard controller contains the AMI Megakey keyboard and mouse controller code, provides
the keyboard and mouse control functions, and supports password protection for power on/reset. A
power on/reset password can be specified in Setup.
The keyboard controller also supports the hot-key sequence <Ctrl><Alt><Del> for a software reset.
This key sequence resets the computer's software by jumping to the beginning of the BIOS code
and running the Power-On Self Test (POST).
Table 36. PS/2 Keyboard/Mouse Connectors
Pin Signal Name
1 Data
2 No connect
3 Ground
4 +5 V (fused)
5 Clock
6 No connect
Universal Serial Bus (USB)
The system board has two USB ports. One USB peripheral can be connected to each port. For
more than two USB devices, an external hub can be connected to either port. The system board
fully supports the universal host controller interface (UHCI) and uses UHCI-compatible software
drivers.
Computer systems that have an unshielded cable attached to a USB port may not meet
FCC Class B requirements, even if no device or a low-speed USB device is attached to
i
the cable. Use shielded cable that meets the requirements for high-speed devices.
80
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Technical Reference
Parallel Port
The connector for the multimode bidirectional parallel port is a 25-pin D-Sub connector located on
the back panel (see Figure 15/Callout E). In the Setup program, the parallel port can be configured
for the following:
•
Compatible (standard mode)
•
Bidirectional (PS/2 compatible)
•
Extended Parallel Port (EPP)
•
Enhanced Capabilities Port (ECP)
Refer to the System Board Technical Product Specification for connector pinout information.
Serial Ports
The two 9-pin D-Sub serial port connectors on the back panel are compatible with 16450 and
16550A UARTs.
Refer to the System Board Technical Product Specification for connector pinout information.
Table 37 shows the pinouts for the LAN Connector.
Table 37. LAN Connector
Pin Signal Name
1 TX+
2 TX3 RX+
4 No connect
5 No connect
6 RX7 No connect
8 No connect
Table 38. Audio Line In Connector
Pin Signal Name
Sleeve Ground
Tip Audio Left In
Ring Audio Right In
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81
Technical Reference
Table 39. Audio Line Out Connector
Pin Signal Name
Sleeve Ground
Tip Audio Left Out
Ring Audio Right Out
Table 40. Audio Mic In Connector
Pin Signal Name
Sleeve Ground
Tip Mono In
Ring Electret Bias Voltage
82
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Technical Reference
I/O Shield
Systems based on the system board need the back panel I/O shield to pass EMI compliance
verification. The back panel I/O shield must meet specific dimension and material requirements.
Figure 16 shows the critical dimensions of a chassis-independent I/O shield.
Additional design considerations for I/O shields relative to chassis requirements are described in the
ATX form factor specification.
0.201
0.00
0.461
1.209
1.216
1.433
1.689
0.207
0.00
0.409
0.773
1.534
1.803
Note: Material = 0.010 ±.0.001 Stainless Steel, Alloy 301 Half Hard
2.959
4.180
Outside(Rear)
View of Shield
Figure 16. Back Panel I/O Shield Dimensions (ATX Chassis-Independent)
5.184
5.785
5.975
0.617
1.207
1.450
1.489
6.183
OM07110
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83
Technical Reference
Midboard Connectors
This section addresses the location and functionality associated with the Midboard family of system
board connectors. The Midboard connectors are organized into the following functional groups.
Table 41. Connector Groups
Connector Family Functional Group(s) See Figure/Table No.
Add-in Card Connectors ISA
PCI
A.G.P.
Audio ATAPI-style Telephony
ATAPI CD Audio
External Speaker
MIDI/Joystick
Fans Processor heatsink fans (4)
Front chassis fans (2)
Rear chassis fans (1)
Power 1 x 6
Primary and Secondary
VRM
Peripheral Interfaces Diskette
SCSI LED
IDE
Security and Hardware
Management
Front and Rear Intrude
Wake on LAN
Wake on Modem
See System Board Technical
Product Specification (Order No.
710790-001)
18/42
18/43
18/44
18/45
See ???System Board
Technical Product Specification
(Order No. 710790-001)
21/48
21/49
21/50
See System Board Technical
Product Specification (Order No.
710790-001)
23/52
23/53
23/54
84
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Technical Reference
Add-in Card Connectors
When the system board is installed in a chassis, there are a maximum of seven slots available for
installing add-in cards. The table immediately below Figure 17 identifies the seven slots by their
callout locations. All of the PCI bus connectors are bus master capable.
Figure 17 shows the location of the add-in card connectors.
A
B
C
D
E
F
G
H
OM07115
A ISA slot (shared with PCI bus connector 6) E PCI bus connector 3
B PCI bus connector 6 (shared with ISA bus connector F PCI bus connector 2
C PCI bus connector 5 G PCI bus connector 1
D PCI bus connector 4 H A.G.P. connector
Figure 17. Add-in Card Connectors
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85
Technical Reference
Audio Connectors
Figure 18 shows the locations of the audio connectors. Tables 42 through 45 list the pinouts of the
audio connectors.
A
1
4
C
B
1
4
12
16
15
D
1
A ATAPI CD-ROM
B ATAPI-style telephony
C MIDI/Joystick
D External speaker
Figure 18. Audio Connectors
86
OM07118
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Technical Reference
The audio connectors include the following:
•
Back panel connectors: Line In, Line Out, Mic In
•
CD-ROM audio (ATAPI)
•
Telephony (ATAPI-style)
CD-ROM Audio
A 1 x 4-pin ATAPI-style connector is available for connecting an internal CD-ROM drive to the audio
mixer.
Telephony
A 1 x 4-pin ATAPI-style connector is available for connecting the monaural audio signals of an
internal telephony device, such as a modem, to the audio subsystem. A monaural audio-in and
audio-out signal interface is necessary for telephony applications such as speakerphones, modems,
and answering machines.
Table 42. ATAPI-Style Telephony Connector(J1E1)
Pin Signal Name
1 MONO_IN (from external device)
2 Ground
3 Ground
4 TEL_MICIN
Table 43. ATAPI CD Audio Connector (J2E1)
Pin Signal Name
1 Left CD In
2 Ground
3 Ground
4 Right CD In
Table 44. External Speaker Connector (J12A1)
Pin Signal Name
1 +5V
2 BUZZER_A
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Technical Reference
Table 45. MIDI/Joystick Connector (J2E2)
Pin Signal Name Pin Signal Name
1 +5 V (fused) 9 Ground
2 +5 V (fused) 10 JBCY
3 JAB1 11 JACY
4 JBB1 12 JBB2
5 JACX 13 JAB2
6 JBCX 14 MIDI-IN
7 No connect 15 +5 V (fused)
8 MIDI-OUT 16 MIDI-PRESENT GP#
88
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Technical Reference
Fan Connectors
There are seven fan connectors on the system board. Four connectors are used for processor
heatsink fans and three are for chassis fans.
Figure 19 shows the location of the fan connectors. Table 46 lists the pinouts of the fan connectors.
The table immediately below Figure 19 indicates the maximum current ratings for the fan
connectors.
A B
1
1 1
OM07113
Rating
G
1
Component Max. Current
1
1
1
F
Component Max. Current
Rating
A Rear chassis fan 600 mA E Processor heatsink fan 150 mA
B Processor heatsink
150 mA F Front chassis fan 1 500 mA
fan
C Processor heatsink
150 mA G Front chassis fan 2 300 mA
fan
D Processor heatsink
150 mA
fan
Figure 19. Fan Connectors
C
D
E
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Technical Reference
Table 46. Fan Connectors
Pin Signal Name
1 TACH_OUT
2 +12 V
3 FAN_ENABLE
Thermal Considerations
Figure 20 shows the locations of the thermally-sensitive components. Table 47 lists the maximum
component case temperatures for system board components that could be sensitive to thermal
changes. Case temperatures could be affected by the operating temperature, current load, or
operating frequency. Maximum case temperatures are important when considering proper airflow to
cool the system board.
A
E
D
C
A Slot 2 (Application Processor) D 82371EB PIIX4E
B Slot 2 (Boot Processor) E 82443GX PAC
C Battery Case
Figure 20. Thermally Sensitive Components
90
B
OM07121
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