Silicon Graphics® Zx10
System Board Guide
Document Number 007-4330-001
Contributors
W ritten by Bryan Cobb, wit h engine ering contr ibutions by Chuck A lexander, Ja mes Bu llin gton, Ja mey Dobbi ns, Jef f Elli ot, R on Headley, Ronnie
Sams, Clark Smith, and Joel Whitehead.
Copyright
© 2000 Silicon Graph ic s, Inc. All rights reserved; provid e d p ort ions may be copyrig ht in third p arties, as indicated el se where herein. No
permission is granted to copy, distribute, or create deriva tive works fr om the co ntents of this elect ro nic docume nta tion in a ny manner, in whole
or in part, without the prior written permission of Silicon Graphics, Inc.
Limited Rights Legend
The electronic (soft ware) version of thi s document was developed at private expense; if acquir ed under an agreement w ith the USA go vernment
or any contractor thereto, it is acquired as "commercial computer software" su b je ct to the provisions of its applicabl e license agreement, as
specified in (a) 48 CFR 12.212 of the FAR; or, if acquired for Department of Defense un it s, (b ) 48 CFR 227-7202 of the DoD FAR Supplement; or
sections succeeding thereto. Contractor/manufacturer is Silicon Graphics, Inc., 1600 Amphitheatre Pkwy 2E, Mountain View, CA 94043-1351
Notice
Information in this document is subject to change without notice a nd s ho uld no t be co ns idered a commitment by Sili co n Gr a ph ic s, Inc. Silicon
Graphics, Inc. shall not be lia ble for technical or editorial error s in, or omissions from, this document. Silicon Gra p hics, Inc. s hall not be liable
for incidental or consequential damages resulting from the furnishing or use of this document.
Trademarks
Silicon Graphics is a register ed tr ad emark, and SGI and the SGI logo are trademarks, of Silicon Graphics, Inc. Intel and Pentium are r egistered
trademarks of Intel Corpo rat ion. ServerSet is a trademark of Se rverWorks Corporation. Microsof t is a registered trade mark of Microsoft
Corporation. Other brands and product names are trademarks of their respective owners.
FCC/DOC Compliance
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy. If the equipment is not installed and used in accordance with the
instructions, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installati on .
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and
on, try to correct the interference as follows: reorient or relocate the affected device; increase the separation between this equipment and the
affected device; connect this equipment to an outlet on a circuit different from the circuit to which the affected device is connected; consult a
dealer or an experienced radio/television technician for help.
For additional regulatory information, see the label attached to the back of the equipment.
This Class B digital a pparatus meets al l requ ire ments of the Canadi an Interfer ence-Ca using Equipment Regulations. Cet apparei l numéri que de
la classe B respecte toutes les exigencies du Règlement sur le materiél brouilleur du Canada.
Safety Notices
Service and upgrade tasks should be performed by users who can f o llow in st r u cti on s in a manual to servi ce equipment, and can do so without
harm to themselves or damage to the equipment.
To reduce the risk of electrical shock and energy hazards, do not attempt to open the equipment unless instructed, and do not use a tool for
purposes other than in st ruc ted.
Internal components may be at high temperatures. Allow time for them to cool before handling them.
Internal components can be damaged by static electricity. Use an antistatic wrist strap connected to the bare metal of the system’s chassis to
protect against electrostatic discharge.
Notes
Changes or modifications made to the system that are not approved by the party responsible for compliance could void the user's authority to
operate the equipment.
Procedures in this document assume familiarity with the general terminology associated with personal computers, and with the safety practices
and regulatory compliance required for using and modifying electronic equipment.
Read all operating instructions before using this device. Keep these instructions for future reference. Follow all warnings on the device or in the
operating instructions.
Record of Revision
Version Description
002 September 2000
Initial Rev
007-4330-002 v
Contents
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . xi
About Th is Guide. . . . . . . . . . . . . . . . . . . . . . .xiii
Getting Documents . . . . . . . . . . . . . . . . . . . . . .xiii
Reader Comments. . . . . . . . . . . . . . . . . . . . . . . xiii
1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features and Components . . . . . . . . . . . . . . . . . . . . 1
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Components . . . . . . . . . . . . . . . . . . . . . . . . 7
Processors . . . . . . . . . . . . . . . . . . . . . . . . . 7
Memory Modules . . . . . . . . . . . . . . . . . . . . . . . 10
Expansion Sockets. . . . . . . . . . . . . . . . . . . . . . . 14
Power and Data Connectors . . . . . . . . . . . . . . . . . . . . 15
Fan Connectors . . . . . . . . . . . . . . . . . . . . . . . 17
ATAPI Connectors. . . . . . . . . . . . . . . . . . . . . . . 20
Jumper Connectors . . . . . . . . . . . . . . . . . . . . . . 22
I/O Port Connectors . . . . . . . . . . . . . . . . . . . . . . 25
Keyboard, Mouse . . . . . . . . . . . . . . . . . . . . . . 25
Parallel . . . . . . . . . . . . . . . . . . . . . . . . . 27
Serial . . . . . . . . . . . . . . . . . . . . . . . . . 28
Universal Serial Bus . . . . . . . . . . . . . . . . . . . . . 29
Ethernet Network. . . . . . . . . . . . . . . . . . . . . . 30
External Wide Ultra2 SCSI (LVDS) . . . . . . . . . . . . . . . . . 31
Audio Line Out, Line In, Microphone . . . . . . . . . . . . . . . . 33
MIDI/Game . . . . . . . . . . . . . . . . . . . . . . . 34
007-4330-002 vii
Contents
Integrated Controllers . . . . . . . . . . . . . . . . . . . . . . 35
SCSI Controller . . . . . . . . . . . . . . . . . . . . . . 35
Network Controller . . . . . . . . . . . . . . . . . . . . . 36
Audio Controller . . . . . . . . . . . . . . . . . . . . . . 36
Hardware Monitoring and Power Management . . . . . . . . . . . . . . 37
CMOS/Clock Lithium Battery . . . . . . . . . . . . . . . . . . . 39
3. BIOS Setup . . . . . . . . . . . . . . . . . . . . . . . . . 43
BIOS Overview . . . . . . . . . . . . . . . . . . . . . . . . 43
Using BIOS Setup . . . . . . . . . . . . . . . . . . . . . . . 43
BIOS Setup Screens. . . . . . . . . . . . . . . . . . . . . . . 44
Main Screen . . . . . . . . . . . . . . . . . . . . . . . . . 45
Advanced Screen . . . . . . . . . . . . . . . . . . . . . . . 46
Security Screen . . . . . . . . . . . . . . . . . . . . . . . . 46
Misc. Screen. . . . . . . . . . . . . . . . . . . . . . . . . 48
Boot Screen . . . . . . . . . . . . . . . . . . . . . . . . . 48
Exit Screen . . . . . . . . . . . . . . . . . . . . . . . . . 49
Using CMOS Reset . . . . . . . . . . . . . . . . . . . . . . . 49
Updating the System BIOS . . . . . . . . . . . . . . . . . . . . 50
4. Resources . . . . . . . . . . . . . . . . . . . . . . . . . 51
ISA Interrupt Requests (IRQs) . . . . . . . . . . . . . . . . . . . 51
PCI-to-ISA Interrupt Map . . . . . . . . . . . . . . . . . . . . . 52
Direct Memory Access (DMA) Channels . . . . . . . . . . . . . . . . 53
Input/Output (I/O) Map . . . . . . . . . . . . . . . . . . . . . 53
Memory Map . . . . . . . . . . . . . . . . . . . . . . . . 56
5. Messages . . . . . . . . . . . . . . . . . . . . . . . . . 57
POST Tasks and Beep Codes . . . . . . . . . . . . . . . . . . . . 57
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . 63
viii 007-4330-002
Figures
Figure 1-1 133MHz FSB Block Diagram . . . . . . . . . . . . 5
Figure 1-2 Major Components of the System Board. . . . . . . . . 6
Figure 2-1 Installed Processor . . . . . . . . . . . . . . . 8
Figure 2-2 Processor Attachment . . . . . . . . . . . . . . 9
Figure 2-3 Processor Bus Terminator Card . . . . . . . . . . . 10
Figure 2-4 Memory ModuleSockets and Banks . . . . . . . . . . 11
Figure 2-5 Dual Inline Memory Module (DIMM) Insertion . . . . . . 12
Figure 2-6 DIMM Terminator Module . . . . . . . . . . . . 12
Figure 2-7 Expansion Sockets . . . . . . . . . . . . . . . 15
Figure 2-8 Power and Data Connectors . . . . . . . . . . . . 16
Figure 2-9 Fan4 Connector . . . . . . . . . . . . . . . . 17
Figure 2-10 Fan3 Connector . . . . . . . . . . . . . . . . 18
Figure 2-11 Fan1 and Fan Connectors . . . . . . . . . . . . . 19
Figure 2-12 (ATAPI) Connectors . . . . . . . . . . . . . . 21
Figure 2-13 Jumper Connectors. . . . . . . . . . . . . . . 23
Figure 2-14 JP3 Spread Spectrum Control . . . . . . . . . . . . 24
Figure 2-15 Input/Output (I/O) Port Connectors . . . . . . . . . 25
Figure 2-16 Keyboard or Mouse Ports . . . . . . . . . . . . . 26
Figure 2-17 Parallel Port . . . . . . . . . . . . . . . . . 27
Figure 2-18 Serial Port . . . . . . . . . . . . . . . . . 28
Figure 2-19 Universal Serial Bus (USB) Port . . . . . . . . . . . 29
Figure 2-20 Ethenet Network Port . . . . . . . . . . . . . . 30
Figure 2-21 External Wide Ultra2 SCSI (LVDS) Port . . . . . . . . . 31
Figure 2-22 Audio Line Out, Line In, and Microphone Ports . . . . . . 33
Figure 2-23 MIDI/Game Port . . . . . . . . . . . . . . . 34
Figure 2-24 System Board Power/Status LED . . . . . . . . . . 39
Figure 2-25 CMOS/Clock Lithium Battery . . . . . . . . . . . 40
007-4330-002 ix
Tables
Table 1-1 Main Features and Components . . . . . . . . . . . 1
Table 2-1 Memory Configurations . . . . . . . . . . . . . 13
Table 2-2 ATAPI Connectors . . . . . . . . . . . . . . . 20
Table 2-3 Jumper Connectors. . . . . . . . . . . . . . . 22
Table 2-4 Keyboard/Mouse Ports . . . . . . . . . . . . . 26
Table 2-5 Parallel Port . . . . . . . . . . . . . . . . . 27
Table 2-6 Serial Port . . . . . . . . . . . . . . . . . 28
Table 2-7 Universal Serial Bus (USB) Port . . . . . . . . . . . 29
Table 2-8 Ethernet Network Port. . . . . . . . . . . . . . 30
Table 2-9 External Wide Ultra2 SCSI (LVDS) Port . . . . . . . . . 31
Table 2-10 Audio Line Out, Line In, and Microphone Ports . . . . . . 33
Table 2-11 MIDI/Game Port . . . . . . . . . . . . . . . 34
Table 2-12 Base Unit Power LED . . . . . . . . . . . . . . 38
Table 2-13 System Board Power/Status LED . . . . . . . . . . 38
Table 3-1 Main Screen Parameters . . . . . . . . . . . . . 45
Table 3-2 Advanced Screen Parameters . . . . . . . . . . . . 46
Table 3-3 Security Screen Parameters . . . . . . . . . . . . 47
Table 3-4 Misc. Screen Parameters . . . . . . . . . . . . . 48
Table 3-5 Exit Screen Parameters. . . . . . . . . . . . . . 49
Table 4-1 ISA Interrupt Requests. . . . . . . . . . . . . . 51
Table 4-2 PCI-to-ISA Interrupt Map . . . . . . . . . . . . . 52
Table 4-3 DMA Channels . . . . . . . . . . . . . . . . 53
Table 4-4 I/O Map. . . . . . . . . . . . . . . . . . 53
Table 4-5 Memory Map . . . . . . . . . . . . . . . . 56
Table 5-1 Test Point Codes . . . . . . . . . . . . . . . 57
Table 5-2 Error Messages . . . . . . . . . . . . . . . . 63
007-4330-002 xi
About This Guide
This System Board Guide provides detailed information on the Silicon Grap hics Zx10
system board. The document is organized as follows:
• Chapter 1, “Overview” introduces the system board, its features, and its major
components.
• Chapter 2, “Components” locates and describes the major components on the
system board.
• Chapter 3, “BIOS Setup” describes the BIOS Setup program and the system’s BIOS
settings.
• Chapter 4, “Resources” lists and describes system board resources.
• Chapter 5, “Messages” lists and describes messages produced by the system board.
Getting Documents
To obtain SGI documents, go to the SGI Technical Publications Library pages on the
World Wide Web at http://techpubs.sgi.com.
Reader Comments
If you have comments about the technical accuracy, content, or organization of this
document, please tell us. Be sure to include the title and document number of the manual
with your comments. (Online, the document number is located in the front matter of the
manual. In printed manuals, the document number can be found on the back cover.)
You can contact us in any of the following ways:
• Send e-mail to techpubs@sgi.com.
007-4330-002 xiii
About This Guide
• Use the Feedback option on the Technical Publication s Library pages on the World
Wide Web at http://techpubs.sgi.com.
• Contact your customer service representative and ask that an incident be filed in the
SGI incident tracking system.
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Mountain View, California 94043-1351
• Send a fax to the attention of “Technical Publications” at +1 650 932 0801.
We value your comments and will respond to them promptly.
xiv 007-4330-002
Chapter 1
1. Overview
This chapter describes the system board, its features, and its major components.
Features and Components
Table 1-1 Main Features and Components
Main Features Components
Processors Dual Intel SC242 (Slot 1) support
Intel Pentium III processors
Two integrated voltage r e gu lat or s
133 MHz 64-bit front-side bus (FSB)
System Chipset ServerWorks ServerSet III WS
Streaming Multiport Controllers
266 MHz 32-bit fast I/O interface
AGP controller – one AGP Pro expansion socket
USB controller – four Universal Serial Bus (USB) ports – two external, one
internal, one for the AGP controller
EIDE controller – two Peripheral Component Interconnect (PCI)
bus-mastering EIDE channels
I/O Controller SMC FDC37B787
Controls keyboard, mouse, real-time clock, and floppy disk
Two serial ports, one parallel port
007-4330-002 1
1: Overview
Table 1-1 (continued) Main Features and Components
Main Features Components
Memory PC133 Synchronous Dynamic Random Access Memory (SDRAM)
Six 168-pin registered dual-inline memory module (DIMM) sockets
Supports 72-bit Error Correction Code (ECC) memory modules
Four banks, two DIMMs per bank, two-way interleaved
133 MHz 128-bit memory bus
SCSI Controller LSI 53C1010
Low-voltage differential (LVD) Ultra 3 SCSI bus
Two 16-bit 80 MHz SCSI channels
Two high-density (HD) 68-pin SCSI connectors
320 MB/sec Ultra 3 SCSI throughput
Handles both Ultra2 and Ultra3 devices at their assigned transfer rates
Network Controller Intel 82559
100 Mbit/sec and 10 Mbit/sec Ethernet network interface
Wake-on-Modem support
Wake-on-LAN support
Audio Controller Creative Labs ES1373 AudioPCI
Audio Codec ’97 (AC97)
Advanced Technology Attachment Packet Interface (ATAPI) CD-ROM
audio header, modem audio header, and video header
Expansion Sockets One full-length AGP Pro socket
Two full-length fast/wide PCI sockets (64 bits, 66 MHz/33 MHz, 3.3 V)
Four full-length wide PCI sockets (64 bits, 33 MHz, 5 V)
One full-length Industry Standard Architecture (ISA) socket (16 bits)
Input/Output Ports One PS/2 mouse port (6-pin mini-DIN)
2 007-4330-002
Table 1-1 (continued) Main Features and Components
Main Features Components
One PS/2 keyboard port (6-pin mini-DIN)
One parallel (LPT) port (25-pin D-sub)
Two serial (COM) ports (9-pin D-sub)
Two USB ports (self-identifying, hot-pluggable, 12 MB/sec)
One SCSI port (68-pin HD) – Ultra 3
One Ethernet port (8-pin RJ-45)
One each microphone in, line in, and line out audio ports (PC standard
1/8-inch phone jacks)
One MIDI/game port (15-pin D-sub)
Four A TAPI connectors (internal) – CD IN, VIDEO IN, MONO IN, MPEG
IN
BIOS Phoenix BIOS
Features and Compone nts
Supports Advanced Configuration and Power Interface (ACPI)
Supports Desktop Management Interface (DMI)
Supports PC99
Supports S0, S1, S3, and S5 system states
Auto-configuration of IDE hard disk types
Form Factor Extended ATX (12 in x 13 in)
Two 20-pin ATX power connectors
Stacked input/output ports
Voltage and Power ATX power supply connectors
+12V variable power source for DC fans
3.3 V SDRAM memory support
System
Monitoring of all system voltages and four temperature points
Management
007-4330-002 3
1: Overview
Table 1-1 (continued) Main Features and Components
Main Features Components
Fan headers with monitoring and control functions
Chassis intrusion alert hea der
Temperature and voltage monitoring
Wake-on-Modem header
Wake-on-LAN header
Block Diagram
Regulatory
Compliance
FCC Class B (Declaration of Conformity)
European Community CE (Declaration of Conformity)
Underwriter’s Laboratories
Figure 1-1 on the following page shows the major system board compon ents and
connections.
4 007-4330-002
Block Diagram
Figure 1-1 133MHz FSB Bloc k D iagram
007-4330-002 5
1: Overview
Figure 1-2 calls out the system board’s major compone nts. Mor e detailed informatio n on
system board components is found in Chapter 2, “Components”.
I/O ports
Processor
socket
Processor
socket
Memory module
sockets
Power and data
connectors
Expansion
sockets
CMOS/Clock
battery
Figure 1-2 Major Components of the System Board
6 007-4330-002
Chapter 2
2. Components
This chapter locates and describes major components on the sy stem board. The chapter
also provides information on the integrated controllers and hardware monitoring.
Warning: Before touching the system board or its components, disconnect the
system’s power cord from its AC power outlet.
Warning: System board components may be at high temperatures. Allow time for
them to cool before handling them.
Warning: System board components can be damaged by static electricity. Use an
antistatic wrist strap connected to the bare metal of the system’s chassis to protect
against electrostatic discharge.
Processors
The system board contains two Intel SC242 (Slo t 1) pro cessor sockets. Each socket has an
associated voltage regulator integrated on th e system board.
007-4330-002 7
2: Components
Primary processor socket
Secondary processor socket
Figure 2-1 Installed Processor
Each processor socket accepts an Intel Pentium III processor (133 MHz front-side bus).
The processor is secured to its socket by retention clips on both sides. The retention clips
are secured by nuts to screws attached to the system board.
8 007-4330-002
Processor
Processors
Processor retention clip
(one each side)
Figure 2-2 Processor Attachment
The system can function with o ne or two processors installed. For a single-p rocessor
system, a processor bus terminator card must be installed in the unused processor socket.
For a dual-processor system, both processors must be the same speed.
007-4330-002 9
2: Components
Processor bus
terminator card
Figure 2-3 Processor Bus Terminator Card
Memory Modules
The system board includes sockets for up to six PC133 dual inline memory modules
(DIMMs). The memory speed matche s the system board’s front-side bus speed.
Memory module sockets are organized into four banks (Bank 0 through Bank 3) of two
sockets each that use two-way memory interleaving.
10 007-4330-002
Memory Modules
Bank 3
Bank 2
Bank 1
Bank 0
Bank 3
Bank 2
Bank 1
Bank 0
Figure 2-4 Memory ModuleSockets and Banks
007-4330-002 11
2: Components
Each socket accepts a 168-pin register e d Syn chronous Dynamic RAM (SDRAM) DIMM.
Each DIMM has a 128-bit memory width and 16-bit error correcting code (ECC)
protection.
Each socket is keyed for proper DIMM insertion. Release tabs on each end of the socket
capture the DIMM and secure it in the socket.
DIMM
Release
tab
Figure 2-5 Dual Inline Memory Module (DIMM) Insertion
Notch
DIMM socket
DIMM terminator modules (similar to the one shown in the following figure) are
installed in Bank 1 instead of standard DIMMs.
Figure 2-6 DIMM Terminator Module
To avoid damaging a DIMM and voiding its warranty, take the following precautions:
• Do not remove the DIMM from its antistatic package until you are ready to install it.
• Do not touch the metallic finger contac ts.
12 007-4330-002
Memory Modules
• Do not bend, twist, drop, or otherwise handle the DIMM carelessly.
• Do not expose the DIMM to moisture or extreme temperatures.
When adding or replacing system memory on all system boards:
• Install DIMMs first in Bank 3, then in Bank 2, and finally in Bank 0.
• Do not replace DIMM terminator modules in Bank 1 with standard DIMMs.
• Ensure all installed DIMMs are PC133 (133 MHz). Do not mix DIMMs of different
speeds.
• Use only registered DIMMs. Do not use unbuffered DIMMs.
• Install DIMMs in both sockets of a bank. Do not install only one DIMM in a bank.
• Install the same size DIMM in both sockets of a bank. You can vary DIMM sizes
from bank to bank, but not within a bank.
A system board can have up to 6,144 MB of system memory, in increments of 256 MB, 512
MB, and 1,024 MB. The following are common configurations.
Table 2-1 Memory Configurations
Memory Bank 3 Bank 2 Bank 0
256 MB 2 x 128 MB
512 MB 2 x 128 MB 2 x 128 MB
2 x 256 MB
768 MB 2 x 128 MB 2 x 128 MB 2 x 128 MB
2 x 128 MB 2 x 256 M B
1,024 MB 2 x 128 MB 2 x 128 MB 2 x 256 MB
2 x 256 MB 2 x 256 M B
2 x 512 MB
2,048 MB 2 x 256 MB 2 x 256 MB 2 x 512 MB
2 x 512 MB 2 x 512 M B
2 x 1,024 MB
3,072 MB 2 x 512 MB 2 x 512 MB 2 x 512 MB
007-4330-002 13
2: Components
Table 2-1 (continued) Me mo ry Config urations
Memory Bank 3 Bank 2 Bank 0
4,096 MB 2 x 512 MB 2 x 512 MB 2 x 1,024 MB
5,120 MB 2 x 1,024 MB 2 x 512 MB
6,144 MB 2 x 1,024 MB 2 x 1,024 MB 2 x 1,024 MB
Expansion Sockets
The system board includes sockets for up to seve n e x pansion cards, as follows:
• One full-length Accelerated Graphics Port (AGP) Pro socket
• Two full-length fast/wide Peripheral Component Interconnect (PCI) socket (64 bits,
2 x 512 MB 2 x 1,024 MB
2 x 1,024 MB 2 x 1,024 MB
66 MHz/33 MHz, 3.3 V)
• Four full-length wide PCI socket (64 bits, 33 MHz, 5 V)
• One full-length Industry Standard Architecture (ISA) socket (16 bits)
When installing expansion cards, note the following:
• All PCI sockets support Universal adapters.
• An expansion card can be installed in either socket 7 (wide PCI or ISA), but not in
both.
14 007-4330-002
Socket 4
PCI (wide)
Socket 5
PCI (fast/wide)
Socket 6
PCI (fast/wide)
Socket 7
PCI (wide)
Socket 2
PCI (wide)
Socket 3
PCI (wide)
Power and Data Connectors
Socket 1
AGP
Socket 7
ISA
Figure 2-7 Expansion Sockets
Power and Data Connectors
The system board contains two 20-pin ATX power connectors. These connectors accept
power cables (P1 and P2) from the syste m’s power supply. The connectors are keyed for
proper connection.
007-4330-002 15
2: Components
The system board contains five data connectors, immediately below the power
connectors. These connectors accept data cables from the system’s peripheral devices.
The connectors are keyed for proper connection.
Warning: For continued protection against fire and energ y hazar ds, do not conn ect
an external SCSI port to SCSI Channel B. Conne ct an exte rnal SCSI port only to SCSI
Channel A.
P1 power
P2 power
Floppy disk drive
Secondary EIDE bus
Primary EIDE bus
SCSI channel B
SCSI channel A
Figure 2-8 Power and Data Connectors
16 007-4330-002
Fan Connectors
Fan Connectors
The system’s rear fan connects to one of the 3-pin CPU FA N connectors (shown in the
following figure). The connectors are keyed for proper connection. The rear fan in a
tower chassis connects to the FAN4 connector to the left of and between the processor
sockets. The rear fan in a rack-mount chassis connects to the FAN3 connector below and
to the right of the lower processor socket.
FAN4 Connector
Figure 2-9 Fan4 Connector
007-4330-002 17
2: Components
FAN3 Connector
Figure 2-10 Fan3 Connector
Fans in the front of the chassis connect to one of the 3-pin FAN1 or FAN2 connectors in
the lower-right corner of the system board.
18 007-4330-002
Fan Connectors
FAN1 Connector
FAN2 Connector
Figure 2-11 Fan1 and Fan Connectors
007-4330-002 19
2: Components
ATAPI Connectors
The system board has four 4-pin Advanced Technology Attachment Packet Interface
(ATAPI) connectors. The connectors are keyed for proper connection.
Table 2-2 A TAPI Connectors
ATAPI Connector Function
CD IN Connects to the audio cable from the system’s CD-ROM drive.
Pin 1=CD In Left, Pins 2 and 3=Ground, Pin 4 =C D In Right
VIDEO IN Connects to the audio cable from an internal device such as a TV tuner expansion
card.
Pin 1=Left Line In, Pins 2 and 3=Ground, Pin 4=Right Line In
MONO IN Connects to the mono audio signal cable fr om a modem or other telephony device.
Pin 1=Audio Out, Pins 2 and 3=Ground, Pin 4=Audio In
MPEG IN Connects to the cable carrying the decoded audio signal from a DVD player or
similar device.
Pin 1=Left Line In, Pins 2 and 3=Ground, Pin 4=Right Line In
20 007-4330-002
Connector
VIDEO IN
Connector
MONO IN
Connector
MPEG IN
Connector
ATAPI Connectors
CD IN
Figure 2-12 (AT A PI) Connectors
007-4330-002 21
2: Components
Jumper Connectors
Jumper connectors on the system board connect to system components or provide
essential system fun ctions.
Table 2-3 Jumper Connectors
Jumper Connector Function
J22 Connects to chassis intruder alert switch.
J24 Connects to powe r switch, power LED, and disk d rive LED. Cable connects to top
J29 Causes CMOS reset. Instructs basic input/output system (BIOS) to use factory
JP3 Spread spectrum control. If factory installed, do not remove. (See figure on
eight pins.
settings, clears BIOS Setup pa sswor d, a nd for ces BI OS Setu p at eac h syst em boot .
See Chapter 3, "BIOS Setup," for instructions to use CMOS reset.
following page.)
22 007-4330-002
Jumper Connectors
J24 power
switch/LEDS
J29 CMOS
reset
Figure 2-13 Jumper Connectors
J22 chassis
intruder alert
switch
007-4330-002 23
2: Components
JP3
Spread spectrum
control
Figure 2-14 JP3 Spread Spectrum Control
24 007-4330-002
I/O Port Connectors
The input/output (I/O) port connectors are stacked on the system board adjacent to the
processor sockets.
I/O Port Connectors
Mouse
Keyboard
USB
Serial (COM1)
Ethernet
Parallel (LPT)
Serial (COM2)
Audio line out
Audio line in
Figure 2-15 Input/Output (I/O) Port Connectors
MIDI/game
Microphone
Keyboard, Mouse
Keyboard and mouse ports are PS/2-style 6-pin male min-DIN connectors. The
functionality of the two ports is not interchangeable. The keyb oard is powered by
standby power. The keyboard port color is purple; the mouse port color is green.
007-4330-002 25
2: Components
2
4
6
1
3
5
Figure 2-16 Keyboard or Mouse Ports
Table 2-4 Keyboard/Mouse Ports
Pin Signal
1KDATA (keyboard)
MDATA (mouse)
2Spare
3Ground
4 VCC
5KCLK
6Spare
26 007-4330-002
Parallel
I/O Port Connectors
The parallel port is a 25-pin female D-sub connector. The port color is burgundy.
14
25
1
13
Figure 2-17 Parallel Port
Table 2-5 Parallel Port
Pin Signal Pin Signal
1 Strobe 10 Acknowledge (-ACK)
2 Data 0 11 Busy
3 Data 1 12 P aper Empty (PE)
4 Data 2 13 +Sele ct
5 Data 3 14 Auto Feed (-Auto FDXT)
6 Data 4 15 -E rror
7 Data 5 16 Start (-Init)
8 Data 6 17 Select (-SLCTIN)
9 Data 7 18-25 Ground
007-4330-002 27
2: Components
1
5
9
6
Serial
Serial (COM) ports are 9-pin male D-sub connectors. The port color is teal.
Figure 2-18 Serial Port
Table 2-6 Serial Port
Pin Signal Pin Signal
1 Data Carrier Detect (DCD) 6 Data Set Ready (DSR)
2 Receive Data (RD) 7 Request to Send (RTS)
3 Transmit Data (TD) 8 Clear to Send (CTS)
4 Data Terminal Ready (DTR) 9 Ring Indicator (RI)
5 Ground
28 007-4330-002
Universal Serial Bus
I/O Port Connectors
Universal Serial Bus (USB) ports are 8-pin female USB connectors.
1
B
A
1
4
4
Figure 2-19 Universal Serial Bus (USB) Port
Table 2-7 Universal Serial Bus (USB) Port
Pin Signal Pin Signal
A1 Power B1 Power
A2 - B2 A3 + B3 +
A4 Ground B4 Ground
007-4330-002 29
2: Components
1
8
Ethernet Network
The Ethernet Network port is an 8-pin RJ45 connector.
Figure 2-20 Ethenet Network Port
Table 2-8 Ethernet Network Port
Pin Signal Pin Signal
1 Transmit (TD+) 5 Reserv e d
2 Transmit (TD-) 6 Receive (RD-)
3 Receive (RD+) 7 Reserved
4 Reserved 8 Reserved
30 007-4330-002
External W ide Ultra2 SCSI (LVDS)
The external Wide Ultra2 SCSI (LVDS) port is a 68-pin female SCSI connector. Pins not
listed are connected to ground.
I/O Port Connectors
68
34
135
Figure 2-21 External Wide Ultra2 SCSI (LVDS) Port
Table 2-9 External Wide Ultra2 SCSI (LVDS) Port
Pin Signal Pin Signal
17 TERMPWR 50 Ground
18 TERMPWR 52 TERMPWR
35 SD- (12) 53 No connection
36 SD-(13) 54 Ground
37 SD-(14) 55 SATII38 SD-(15) 56 Ground
39 SDP1- 57 SBSY-
007-4330-002 31
2: Components
Table 2-9 (continued) External Wide Ultra2 SCSI (LVDS) Port
40 SD-(0) 58 SACK41 SD-(1) 59 SRSI42 SD-(2) 60 SMSG43 SD-(3) 61 SSEL44 SD-(4) 62 SCD45 SD-(5) 63 SREQ46 SD-(6) 64 SIO47 SD-(7) 65 SD-(8)
48 SDP0- 66 SD-(9)
49 Ground 67 SD-(10)
51 TERMPWR 68 SD-(11)
32 007-4330-002
Audio Line Out, Line In, Microphone
The Audio Line Out, Line In, and Microphone ports are PC-standard 1/8-inch female
phone jacks. The Audio Line Out port color is lime; the Audio Line In port color is light
blue; and the Microphone port color is pink.
I/O Port Connectors
Tip
Ring
Shield
Figure 2-22 Audio Line Out, Line In, and Microphone Ports
Table 2-10 Audio Line Out, Line In, and Microphone Ports
Pin Signal
Shield Ground
Tip Left (line) / Mic (microphone)
Ring Right (line) / Bias (microphone)
007-4330-002 33
2: Components
1
8
9
15
MIDI/Game
The MIDI/Game port is a 15-pin female D-sub connector. The port color is gold.
Figure 2-23 MIDI/Game Port
Table 2-11 MIDI/Game Port
Pin Signal Pin Signal
1=5 V 9 =5 V
2 Fire button 0 10 Fire button 2
3 X-axis, joystick 1 11 X-axis, joystick 2
4 Ground 12 MIDI out
5 Ground 13 Y-axis, joystick 2
6 Y-axis, joystick 1 14 Fire button 3
7 Fire button 1 15 MIDI in
8+5 V
34 007-4330-002
Integrated Controllers
The system board has three integrated controllers. Each controller can be disabled if
needed using the BIOS Setup program. For more information, see Chapter 3, “BIOS
Setup”.
SCSI Controller
The system board includes an integrated LSI 53C1010 SCSI controller. The controller
provides the system with a dual-channel Ultra3 SCSI bus.
Channel A connects to an external SCSI port and (on some systems) to internal SCSI
devices. Channel B connects (on some systems) to internal SCSI devices. Both channels
use 68-pin SCSI connectors located on the system board.
Warning: For continued protection against fire and energ y hazar ds, do not conn ect
an external SCSI port to SCSI Channel B. Conne ct an exte rnal SCSI port only to SCSI
Channel A.
Integrated Controlle rs
Controller features include:
• Low-Voltage Differential (LVD) bus
• 2 16-bit 80 MHz channels
• 160 MB/sec transfer rate per channel for Ultra3 devices
• Ultra2 and Ultra3 devices connected to the controller operate at their respective
transfer rates
• PCI bus interface
• Advanced Configuration and Power Interface (ACPI) support
You may need to use the SCSI Configuration Utility to configure the operation of SCSI
peripherals connected to the controller. This utility lets you configure SCSI controllers,
perform a low-level format on a SCSI hard disk drive, select boot order, and verify media.
T o ru n the SCSI Conf iguratio n Utility, press
See SCSI Configuration Utility Help for more informati on on using the utility.
007-4330-002 35
CTRL+C when prompted during system boot.
2: Components
Network Controller
The system board includes an integrated Intel 82559 10/100 Mb/sec Fast Ethernet
controller. The controller provides support for the Advanced Configuration and Power
Interface (ACP I ), Wake-on-LAN, Sy s tem Ma nagement Bus, a nd Wired for Management
compliance.
Note: The Zx10 system board supports Wake-On-LAN through a PCI 2.2-compliant
power-management event (PME) on the PCI bus. The system board does not support
expansion cards that require a Wake- On-LAN header for wake events.
The controller’s Ethernet port is located on the input/output (I/O) panel.
Controller features include:
• IEEE 802.3 10BASE-T and 100BASE-TX compatibility
• Full-duplex support at both speeds
• 3 Kb Transmit and Receive FIFO
• IEEE 802.3x 100BASE-TX flow control support
• PCI bus interface
• RJ45 Ethernet port
Audio Controller
The system board includes a Creative Technologies ES1373 AudioPCI controller. The
controller provides support for the Advanced Configuration and Power Interface
(ACPI), DirectSound, Dir ectSound 3D, MIDI, Sound Blaster , Roland MPU401, and Audio
Codec ’97 (AC97).
The controller’s jacks and its MIDI/game port are located on the input/output (I/O)
panel. The ATAPI connectors are located on the system board adjacent to the I/O panel
ports.
Controller features include:
• 64 voices an d 128 general MIDI wavetable instruments
36 007-4330-002
• 8-bit and 16-bit, mono and stereo recording and playback
• Sampling rates up to 48 kHz
• 16 MIDI channe ls
• Full-duplex operation
• Line in, line out, and microphone in jacks
• MIDI/game port
• A T API connectors for CD-ROM input, video input, and monaural audio (telephony)
input
• PCI bus interface
Hardware Monitoring and Power Management
The system board features advanced hardware monitoring capabilities. These features
help save energy, prolong system life, and provide for functionality such as remote
system wakeup.
Hardware Monitoring and Power Management
When used with the hardware monitoring software on a system, these features enable
you to monitor:
• Major system voltages, including +1.5 V, +2.5 V, +3.3 V, +3.3 V standby, +5 V, +5 V
standby, -5 V, +12 V, -12 V, processor (CPU) cores, and AGP input/output (I/O)
• Temperature of processor (CPU) cores, and ambient temperature near the
processors and in the chassis
• Presence and location of fans – front (Fan 1 and Fan 2) and rear (Fan 3 and Fan 4);
presence varies by system
• Chassis intrusion
The system board includes integrated temperature sensors. These sensors provide
signals for reporting temperature readout data and for controlling cooling fan speed.
The Power LED on the front of the system base unit indicates the system’s normal power
states:
007-4330-002 37
2: Components
Table 2-12 Base Unit Power LED
LED Power State Explanat ion
Unlit Off Auxiliary power is of f (fans are n ot running) or t here is a sy stem failure (fans
are running)
Amber Auxiliary Auxiliary power is on; power consumption is reduced
Blinking
Green
Steady
Managed
Power
The system is in an ACPI-compliant power conservation state managed by
the operating system; power consumption is reduced
Full Full power is on; power conservation is per de v ice
Green
The Power/Status LED on the system board indicates the system’s operational status :
Table 2-13 System Board Power/Status LED
LED Status
Unlit Auxiliary power is off (fans are not running)
Bright System failure (fans are running)
Amber Auxiliary power is on
Green Full power is on
38 007-4330-002
CMOS/Clock Lithium Battery
Power/Status LED
Figure 2-24 System Board Power/Status LED
CMOS/Clock Lithium Battery
The CMOS/clock lithium battery is located at the bottom of the system board, next to the
lowest expansion sockets. The battery may be hidden under installed expansion cards.
007-4330-002 39
2: Components
Battery
Figure 2-25 CMOS/Clock Lithium Battery
Battery replacement is not normally required. The battery has a life expectancy of 10
years with no line power applied to the system. Wh en line power is present, there is no
drain on the battery.
If you must remove the battery, the system loses its operating parameters stored in
CMOS memory . As a result, the system BIO S parameter settings are lost. After you install
a new battery, you must reset the date and time and reconfigure the BIOS parameter
settings. See Chapter 3, "BIOS Setup," for more information on configuring BIOS
parameter settings.
Warning: Turn off the system and disconnect it fr om AC power before changing t he
battery. Damage to components can occur if the battery is shorted while AC power is
applied.
To remove the battery, push out the clip on the side of the battery holder to release the
battery . Ensure that the new battery is properly oriented before installing it (positive side
40 007-4330-002
CMOS/Clock Lithium Battery
facing up). Replace the battery only with the same or equivalent type as recommended
by the manufacturer. Dispos e of used batteries according to the manufacturer’s
instructions.
007-4330-002 41
3. BIOS Setup
BIOS Overview
Chapter 3
This chapter describes the BIOS Setup program and BIOS parameter settings. It also
describes how to use CMOS reset and how to update the system BIOS.
The system’s basic input/ outpu t syst em (BIOS) recor ds basic system operating parameters,
such as the amount of memory, the boot sequence, and the type of video display. The
BIOS is stored in flash erasable-programmable memory (EPROM) on the system board,
and reads the system parameters in the system’s complementary metal-oxide
semiconductor (CMOS) random-access memory (RAM). When you power off the
system, a lithium battery provides power to CMOS RAM to retain the operating
parameters. Each time you power on the system, the BIOS uses stored parameters to
configure system operation.
The BIOS Setup program, which is also stored in the flash EPROM on the system board,
allows you to manually change the system operating parameters. You can also run the
BIOS Setup program during the system’s power-on self-test (POST). For the system to
operate correctly, you should run BIOS Setup after you make an y hardware changes to
the system.
Using BIOS Setup
To run BIOS Setup:
Start or restart the system and press f2 when the SGI logo displays.
To navigate BIOS Setup screens and parameters:
• Press the right or left arrow key to move from one screen to the next.
• Press the up or down arrow key to select a parame ter displayed onscreen.
007-4330-002 43
3: BIOS Setup
• Press enter to enter a submenu or execute a command.
• Press + or – to change the value of a selected parameter.
• Press f9 to change all parameters to their default values (as shipped from the
• Press f10 to save changes to any parameters and exit from a screen.
• Press esc to exit from a screen.
• Press f1 for general help with BIOS Setup.
To exit from BIOS Setup:
Go to the Exit screen and select the appropriate option. See “Exit Screen” on page 49“ for
more information.
BIOS Setup Screens
Each BIOS Setup screen has the following features:
factory).
• A screen bar across the top gives you access to all of the BIOS Setup screens.
• A navigation bar across the bottom tells you how to navigat e BIOS Setup.
• A parameter win do w on the left contains the parameters in the selected screen or
submenu.
• A help window on the right displays basic information about the selected item.
• A pointer (
44 007-4330-002
υ) denotes a submenu. Press enter to disp lay it and esc to exit from it.
Main Screen
Main Screen
The Main screen gives you access to the other BIOS Setup screens and to basic
parameters.
Table 3-1 Main Screen Parameters
Parameter Description
BIOS Version Displays the BIOS version.
System Time Sets the system time.
System Date Sets the system date.
Processor Speed Displays the processor speed (in MHz).
Front Side Bus Displays the front-side bus speed (in MHz).
Legacy Diskette A/ Legacy
Diskette B
HDD Configuration Controls the devices on the system ’s primary and secondary
Keyboard Features Controls keyboard operation. A submenu lets you configure
PS/2 Mouse Controls mouse operation. Disabling this parameter prevents a
System Memory Display s the amount of convent ional memor y detected durin g
Extended Memory Displays the amount of extended memory detected during sy st em
Memory Cache Sets the state of the processor memory cache. A subm enu l ets you
Sets the type of floppy disk drive(s) installed in your system. The
standard floppy disk drive is 1.44 MB 3½ inch.
Integrated Drive Electronics (IDE) buses. Each bus supports one
master device and one slave device. A submenu lets you manually
configure device parameters, select large-disk access mode, and
control IDE bus master DMA. By default , t he Type parameters for
all devices are set to Auto to let the BIOS configure them.
specific keyboard functions .
PS/2 mouse from functioning and releases interrupt request (IRQ)
12. By default, this parameter is Enabled.
system boot.
boot.
enable or disable the cache and configur e specific area s of the cache
as needed. By default, the cache is Enabled; the system and video
BIOS areas are set to W rite Pr otect; and the cache base an d extended
memory areas are set to Write Back.
007-4330-002 45
3: BIOS Setup
Advanced Screen
The Advanced screen lets you configure system devices..
Table 3-2 Advanced Screen Parameters
Parameter Description
Processor Serial Number Controls detection of the processor serial number. By default, this
parameter is Enabled.
Installed O/S Sets the operating system most commonly used on the system. By
default, this parameter is Other.
Reset Configuration Data Con trols whether the Exte nded System Configuration Data (ESCD)
area is cleared. By default, this parameter is No.
Extended Memory Test Controls whether extended memory is tested during power-on self
test (POST).
PCI Configuration Controls configuration of installed Peripheral Component
Interconnect (PCI) devices.
Submenus let you enable, disable, and configure the integrated
controllers – SCSI, network, U n ive rsa l S er ial Bus (USB), and audio.
Submenus let you en able or disab le PCI bus ma sterin g an d chang e
the configuration of each PCI socket .
Submenus let you configure operation of a system with installed
Accelerated Graphics Port (AGP), Peripheral Component
Interconnect (PCI), and Industry Standard Architecture (ISA)
devices. You can enable an ISA graphics device to access PCI
graphics palette data (de fault is No), reserve upper me mory for ISA
devices, and reserve IRQs for use by ISA devices. If your system
has dual monitors , you can select which video co ntroller is the boot
display device (used for VGA display).
I/O Device Configuration Controls configuration of the input/output (I/O) ports. You can
Security Screen
The Security screen lets you control access to BIOS Setup and to the system.
46 007-4330-002
configure the serial ports, the parallel port, and the floppy disk
controller as needed.
Security Scre en
Note: When you enter a password, it is saved immediately . All other changes may still
be discarded (see “Exit Screen” on page 49 in this chapter).
Warning: If you forget the supervisor password, it cannot be disabled without
clearing CMOS memory. See "Using CMOS Reset" in this chapter for more
information.
Table 3-3 Security Screen Paramete rs
Parameter Description
Supervisor Password Is Displays the state of the supervisor password.
User Password Is Displays the state of the user password.
Set Supervisor Password Sets the supervisor password. Press
dialog. To disable a set password, set the password to nothing
(press enter without typing a password).
Set User Password Sets the user password. Press enter to display the entry dialog. T o
disable a set password, set the password to nothing (press enter
without typing a password).
Password on Boot Controls whether a password is required to boot the system. You
can use either the supervisor or user password. By default, this
parameter is Disabled.
Diskette Access Controls access to the floppy disk drive if passwords are set. By
default, this parameter is Supervisor.
Enter to display the entry
007-4330-002 47
3: BIOS Setup
Misc. Screen
The Misc. screen lets you configure miscellaneous system functions.
Table 3-4 Misc. Screen Parameters
Parameter Description
Floppy Check Controls whether the floppy disk drive type is verified during
system boot. By default, this parameter is Disabled.
Summary Screen Controls whether the system configur at ion is displayed during
system boot. By default, this parameter is Disabled.
Boot-time Diagnostic Screen Controls whether a diagnostic screen is displayed during system
boot. By default, this parameter is Disabled.
Wakeup on Keyboard Controls whether the system wakes from a soft-off state when it
detects keyboard activity. By default, this parameter is Disabled.
Wakeup on LAN Controls whether the system wakes from a soft-off state when
notified by the netw ork c o nt r oller. By default, this para m et e r is
Disabled.
Wakeup on Modem Ring Controls whether the system wakes from a soft-off state when
notified by an installed modem. By default, this parameter is
Disabled.
Boot Screen
The Boot screen controls the order in which devices are checked during system boot.
Available devices are listed on the screen in boot order. A + next to an item indicates
multiple devices; a ! indicates that a device or set of devices is disabled (not checked
during system boot).
You can:
• Press the up or down arrow key to select a device or list of devices.
• Press enter to expand or collapse a list of devices.
• Press shift+1 to enable or disable a device or list of devices.
• Press + to move a device up in boot order.
48 007-4330-002
Exit Screen
Exit Screen
• Press – to move a device down in boot order.
You can select to boot from removable devices, a specific hard disk drive, the CD-ROM
drive, or a disk drive on the network.
The Exit screen lets you control the changes made to the BIOS and exit from BIOS Setup.
Table 3-5 Exit Screen Parameters
Parameter Description
Exit Saving Changes Saves the changes you have made, exits the BIOS, and restarts the
system to make these changes take effect.
Exit Discarding Changes Leaves the previous BIOS settings intact, exits the BIOS, and
continues with the operating system boot.
Load Setup Defaults Returns all BIOS parameters to their original default settings (as
shipped from the factory).
Discard Changes Discards any changes you have made, but does not exit the BIOS.
Save Changes Saves any changes you have made, but does not exit the BIOS.
Using CMOS Reset
CMOS reset instructs the BIOS to use factory settings, clears BIOS passwords, and runs
BIOS Setup at system boot. See Chapter 2, “Components” for the location of the CMOS
reset jumper connector on the system board.
To use CMOS reset:
1. Turn off system power and disconnect the system from AC power.
2. Install a ju mper on the C MOS reset connector (J29) on the syst em board.
3. Connect the system to AC power and start the system. BIOS Setup runs
automatically.
4. Reconfigure the BIOS parameter settings as needed.
007-4330-002 49
3: BIOS Setup
5. Go to the Exit screen and select Save Changes. Do not select Exit Saving Changes or
press f10.
6. Turn off system power (while still in BIOS Setup) and disconnect the system from
AC power.
7. Remove the jumper from the CMOS reset connector (J29) on the system board.
8. Connect the system to AC power and start the system.
Updating the System BIOS
Y ou can use a flash programming utility and a BIOS file to reprogram the system’s BIOS.
The utility and file are available in a system software product named flashzx. You can
get the most recent version of flashzx from SGI’s online services.
To update the system BIOS:
1. Download the flashzx product to a directory on your system.
2. Extract the BIOS file from the flashzx product to a bootable diskette.
3. Ensure the system is set to boot from a diskette in the floppy disk drive.
4. Restart the system with the boot diskette in the floppy disk drive.
5. When the A: prompt displays, run the flash utility from the boot diskette. See the
readme.txt file included with the BIOS update for detailed instructions.
6. After the update process has completed and the system boots, verify that the new
BIOS version displays (in the Main screen).
50 007-4330-002
Chapter 4
4. Resources
This chapter lists and describe s system board resources.
ISA Interrupt Requests (IRQs)
Most Industry Standard Architecture (ISA) peripheral devices installed in the system
require you to reserve an interrupt request (IRQ). Peripheral Component Interconnect
(PCI) peripheral devices share system resources and can use the same IRQ. (See
“PCI-to-ISA Interrupt Map” on page 52 in this chapter.) At least one IRQ must be
unassigned for use with your system’s PCI devices .
Table 4-1 ISA Interrupt Requests
IRQ Assignment IRQ Assignment
0 Reserved (timer/counter) 8 Reserved (real-time clock)
1 Reserved (keyboard controller) 9 System Management Bus / ACPI
2 Reserved (interrupt controller) 10 PCI
3 Serial ports COM 2 / COM 4 11 PCI
4 Serial ports COM 1 / COM 3 12 PS/2 mouse
5 PCI / Audio 13 Hardware Monitor
6 Reserved (floppy disk controller) 14 Primary IDE
7 Parallel port LPT 1 15 Secondary IDE
To reserve an IRQ for an installed peripheral device:
007-4330-002 51
4: Resources
1. Start or restart the system and run the BIOS Setup program.
2. Go to the Advanced Screen and select the PCI Configuration parameter.
3. Select and reserve the a ppropriate IR Q.
4. Save the changes and exit from BIOS Setup.
The system has a limited number of available IRQs. To install more ISA peripheral
devices than you have available IRQs, you must disable one unused system port for each
excess ISA device, unless the device does not require an IRQ.
Some older PCI device driver software cannot share an interrupt, which is a violation of
the current PCI specification. If you install a device that uses such driver software, you
must free an IRQ for the device to work in the system.
PCI-to-ISA Interrupt Map
PCI peripheral devices installed in the system require one or more PCI interrupt requests
(PIRQ). Four interrupt lines—INTA, INTB, INTC, and INTD—are available for PCI
interrupt requests.
Table 4-2 PCI-to-ISA Interrupt Map
Device PCI Bus/Device CF8h Value INTA INTB INTC INTD
SCSI A Bus 0, Dev 1, Func 0 800008xx PIRQ13
SCSI B Bus 0, Dev 1, Func 1 800009xx PIRQ12
Audio Bus 0, Dev 2, Func 0 800010xx PIRQ14
PCI socket 1 Bus 0, Dev 3 800018xx PIRQ00 PIRQ01 PIRQ02 PIRQ0 3
PCI socket 2 Bus 0, Dev 4 800020xx PIRQ02 PIRQ03 PIRQ00 PIRQ0 1
PCI socket 3 Bus 0, Dev 5 800028xx PIRQ04 PIRQ05 PIRQ13 PIRQ1 2
PCI socket 6 Bus 0, Dev 6 800030xx PIRQ06 PIRQ07 PIRQ04 PIRQ0 5
Ethernet Bus 0, Dev 7, Func 0 800038xx PIRQ07
AGP socket Bus 1, Dev 1 800100xx PIRQ01 PIRQ03
52 007-4330-002
Table 4-2 (continued) PCI-to-I S A Interrup t M ap
Device PCI Bus/Device CF8h Value INTA INTB INTC INTD
PCI socket 4 Bus 2, Dev 1 800208xx PIRQ08 PIRQ09 PIRQ10 PIRQ11
PCI socket 5 Bus 2, Dev 2 800210xx PIRQ10 PIRQ11 PIRQ08 PIRQ09
Direct Memory Access (DMA) Channels
Table 4-3 DMA Channels
DMA Channel Data Width Assignment
08b or 16bOpen
1 8b or 16b Second choice of ECP parallel port
2 8b or 16b Floppy disk controller
Direct Memory Access (DMA) Channels
3 8b or 16b First choice of ECP parallel port
Input/Output (I/O) Map
Table 4-4 I/O Map
I/O Address (hex) Assig nment
0000 – 000F DMA controller 1
0020 – 0021 Interrupt controller 1
0040 – 0043 Timer/counter 1
0048 – 004B Timer/counter 2
0060 Keyboard controller
0061 NMI and speaker
007-4330-002 53
4: Resources
Table 4-4 (continued) I/O Map
I/O Address (hex) Assig nment
0064 Keyboard controller
0070 (bit 7) Enable NMI
0070 (bits 0 – 6) RTC address (maximum 128 bytes)
0072 – 0073 RTC CMOS bank 2 index/data
0080 – 008F DMA page r egisters
0092 A20 control register
00A0 – 00A1 Interrupt controller 2
00C0 – 00DF DMA controller 2
0170 – 0177 Secondary IDE channel
01F0 – 01F7 Primary IDE channel
0200 – 0207 Audio/game port
0220 – 022F Audio (Sound Blast er c ompa t ibl e)
0240 – 024F Audio (Sound Blast er c ompa t ibl e)
0278 – 027F Parallel port LPT 2
02E8 – 02EF Serial port COM 4
02F8 – 02FF Serial port COM 2
0300 – 0301 MIDI
0330 – 0335 MIDI
0370 – 0375 Floppy disk drive channe l 2
0376 Secondary IDE channel command
0377 write Floppy disk drive channel 2 command
0377 bit 7 read Floppy disk drive channel 2 disk change stat us
0377 bits 0 – 6 Secondary IDE channel status
0378 – 037F Parallel port LPT 1
54 007-4330-002
Input/Output (I/O) Map
Table 4-4 (continued) I/O Map
I/O Address (hex) Assig nment
03B4 – 03B5 Add-in card; VGA
03BA Add-in card; VGA
03BC – 03BF Parallel port LPT 3
03C0 – 03CA Add-in card; VGA
03CC Add-in card; VGA
03CE – 03CF Add-in card; VGA
03D4 – 03D5 Add-in card; VGA
03DA Add-in card; VGA
03E8 – 03EF Serial port COM 3
03F0 – 03F5 Floppy disk drive channel 1
03F6 Primary IDE channel command
03F7 write Floppy dis k drive chan nel 1 command
03F7 bit 7 read Floppy disk drive channel 1 disk change status
03F7 bits 0 – 6 Primary IDE channel status
03F8 – 03FF Serial port COM 1
040B DMA ext. write mode register
04D0 – 04D1 Edge/level interrupt control register
04D6 DMA ext. write mode register
0500 – 050F SMBus control registers
0510 – 055F ACPI registers
0C00 – 0C01 PCI-to-IRQ mapping registers
0C06 – 0C08 Security registers
0C14 PCI error status register
0C49 – 0C4A Rise-time counter register
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4: Resources
Memory Map
Table 4-4 (continued) I/O Map
I/O Address (hex) Assig nment
0C50 – 0C52 General-purpose registers
0C6C – 0C6F ISA control registers
0CD6 – 0CD7 Power management registers
0CF8 – 0CFB PCI configuration address registers (DW access)
0CFC – 0CFF PCI configuration data registers
0F50 – 0F58 General-purpose chip select
Table 4-5 Memory Map
Memory Address Range Description
0 K–640 K 00000000 – 0009FFFF DOS conventional memory
640 K–768 K 000A0000 – 000BFFFF VGA memory and BIOS
768 K–896 K 000C0000 – 000DFFFF Expansi on card BIOS and bu ffer
896 K–1024 K 000E0000 – 000FFFFF System BIOS
1024 K–Top of memory 00100000 – Top of memory Main memory
(4 G–20 M) – (4 G–19 M) FEC000 00 – FECFFFFF APIC configuration space
(4 G–18 M) – (4 G–17 M) FEE00000 – FEEFFFFF APIC configuration space
(4 G–4 M) – 4 G FFC00000 – FFFFFFFF High system BIOS
4 G–8 G Maximum allowable memory
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Chapter 5
5. Messages
This chapter describes POST tasks and beep codes, and system board error messages.
POST Tasks and Beep Codes
When you turn on power to or restart the system, the system’s basic input/output
system (BIOS) runs a number of tasks. These power-on self test (POST) tasks test and
initialize the system hardware and then boot the operating system from the system’s
primary hard disk drive.
At the beginning of each POST task, the BIOS sends a test-point error code to
input/output (I/O) port 80h. Programmers and technicians use this code during
troubleshooting to establish at what point the system failed and what POST task was
being run. If the BIOS detects a terminal error condition, it issues a terminal-error beep
code, attempts to display the error code on scr een, a nd sto ps POST. If the system hangs
before the BIOS can process the error , the value displayed at I/O port 80h is the last POST
task run. In this case, the error code does not display on screen.
The following is a list of test point codes written to I/O port 80h at the start of each task.
The tasks are arranged by test point number in the BIOS co de. The beep codes ar e listed
for terminal errors, and are short groups of beeps that represent the terminal error code
in four two-bit groups.
Table 5-1 Test Point Codes
Code Beeps POST Routine Description
01h BIOS has started execution
02h Verify Real Mode
03h Disable Non-Maskable Interrupt (NMI)
04h Get CPU type
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5: Messages
Table 5-1 (continued) Test Point Codes
Code Beeps POST Routine Description
06h Initialize system hardware
08h Initialize chipset with initial POST values
09h Set IN POST flag
0Ah Initialize CPU registers
0Bh Enable CPU cache
0Ch Initialize caches to initial POST values
0Eh Initialize I/ O component
0Fh Initialize the local bus IDE
10h Initialize Power Management
11h Load alternate regist ers wit h ini tia l POST valu es
12h Restore CPU control word during warm boot
13h Initialize PCI Bus Mastering devices
14h Initialize keyboard controller
16h 1- 2- 2- 3 B IOS ROM checksum
17h Initialize cache before memory autosize
18h 8254 timer initialization
1Ah 8237 DMA controller initializ at ion
1Ch Reset Programmable Interrupt Controller
20h 1- 3- 1- 1 Test DRAM refresh
22h 1- 3- 1- 3 Test 8742 Keyboard Controller
24h Set ES segment register to 4 GB
26h Enable A20 line
28h 1- 3- 3- 1 Autosize DRAM
29h 1- 3- 3- 2 Initialize POST Memory Mana ger
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Table 5-1 (continued) Test Poin t Codes
Code Beeps POST Routine Description
2Ah Clear 512 KB base RAM
POST Tasks and Beep Codes
2Ch 1- 3- 4- 1 or
RAM failure on address line xxxx *
1- 1- 1- 1
2Eh 1- 3- 4- 3 RAM failure on data bits xxxx * of low byte of memory bus
2Fh Enable cache before system BIOS shadow
30h 1- 4- 1- 1 RAM failure on data bits xxxx * of high byte of memory bus
32h Test CPU bus clock frequency
33h Initialize Phoenix Dispatch Manager
36h Warm start shut down
38h Shadow system BIOS ROM
3Ah 1- 4- 3- 3 Autosize cache
3Ch Advanced configuration of chipset registers
3Dh Load alternate registers with CMOS values
42h Initialize interrupt vectors
45h POST device initialization
46h 2- 1- 2- 3 Check ROM copyr ight notice
48h Check video configuration against CMOS
49h Initialize PCI bus and devices
4Ah Initialize all video adapters in system
4Bh QuietBoot start (optional)
4Ch Shadow video BIOS ROM
4Eh Display BIOS copyright notice
50h Display CPU type and speed
51h Initialize EISA board
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5: Messages
Table 5-1 (continued) Test Point Codes
Code Beeps POST Routine Description
52h Test keyboard
54h Set key click if enabled
58h 2- 2- 3- 1 Test for unexpected interrupts
59h Initialize POST display service
5Ah Display prompt "Press F2 to enter SETUP"
5Bh Disable CPU cache
5Ch Test RAM between 512 and 640 KB
60h Test extended memory
62h Test extended memory address lines
64h Jump to Us erPatch1
66h Conf igure advanced ca che registers
67h Initialize Multi Processor APIC
68h Enable external and CPU cac he s
69h Setup System Management Mode (SMM) area
6Ah Display e xternal L2 cache s ize
6Bh Load custom defaults (optional)
6Ch Display shadow area message
6Eh Display possible high address for UMB recovery
70h Di splay error mes sages
72h Check for configuration errors
76h Ch eck for keyboard errors
7Ch Set up hardware interrupt vectors
7Eh Initialize coprocessor if present
80h Disable onboard Super I/ O ports and IRQs
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POST Tasks and Beep Codes
Table 5-1 (continued) Test Poin t Codes
Code Beeps POST Routine Description
81h Late POST device initialization
82h Detect and install external RS232 ports
83h Configure non-MCD IDE controller s
84h Detect and install external parallel ports
85h Initiali ze PC-compatible PnP ISA devices
86h Re- initialize onbo ard I/ O ports.
87h Configure Motherboard Configurable Devices (optional)
88h Initialize BIOS Data Area
89h Enable Non-Maskable Interrupts (NMIs)
8Ah Initialize Extended BIOS Data Area
8Bh Test and initialize PS/ 2 mouse
8Ch Initialize floppy controller
8Fh Determine number of ATA drives (optional)
90h In itialize ha rd disk controllers
91h Initialize local bus hard disk controllers
92h Jump to Us erPatch2
93h Build MPTABLE for multiprocessor boards
95h Install CD ROM for boot
96h Clear huge ES segment register
97h Fixup Multi Processor table
98h 1- 2 Sea rch for option ROMs. One lon g, two short beeps on checksum failur e
99h Check for SMART Drive (optional)
9Ah Shadow option ROMs
9Ch Set up Power Management
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5: Messages
Table 5-1 (continued) Test Point Codes
Code Beeps POST Routine Description
9Dh Initialize security engine (optional)
9Eh Enable hardwar e int e rrupts
9Fh Determine number of ATA and SCSI drives
A0h Set time of day
A2h Check key lock
A4h Initialize Typematic rate
A8h Erase F2 prompt
AAh Scan for F2 key stroke
ACh Enter SETUP
AEh Clear Boot flag
B0h Check for errors
B2h POST done, prepare to boot operating system
B4h 1 One short beep before boot
B5h Terminate QuietBoot (optional)
B6h Check password (optional)
B9h Prepare Boot
BAh Initialize DMI parameters
BBh Initialize PnP Option ROMs
BCh Clear parity checkers
BDh Display MultiBoot menu
BEh Clear screen (optional)
BFh Check virus and backup reminders
C0h 4- 1- 1- 1 Try to boot with INT 19
C1h Initialize POST Error Manager (PEM)
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Error Messages
Table 5-1 (continued) Test Poin t Codes
Code Beeps POST Routine Description
C2h Initialize error logging
C3h Initialize error display function
C4h Initialize system error handler
C5h PnPnd dual CMOS (optional)
C6h Initialize notebook docking (optional)
C7h Initialize notebook docking late
C8h Force check (optional)
C9h Extended checksum (optional)
D2h Unknown interrupt
If the BIOS detects error 2C, 2E, or 30 (base 512 KB RAM error), it displays an additional
word-bitmap (xxxx) indicating the address lin e or bits that failed. For exampl e, 2C 0002
means address line 1 (bit one se t) has failed; 2 E 1020 means da ta bits 12 and 5 (bits 12 and
5 set) have failed in the lower 16 bits.
Error Messages
You may encounter the following processor- or memory-related error messages.
Table 5-2 Error Messages
Message Description
02F8: Microcode update failed to load
on CPU n
02F9: Memory interleave is missing in
bank n
02FA: Memory populatio n error: all
banks are filled
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Processor microcode update is not present or failed to
load on the processor
Only one memory module was seen in bank n
More than six memory modules are installed; memory
DIMMs may be installed in Bank 1
5: Messages
Table 5-2 (continued) Error Messages
Message Description
02FC: Memory does not have regi stered
Memory in bank n is the wrong type
inputs in bank n
02FD: Memory is not supported in bank nMemory in bank n does not meet minimum
requirements
02FE: Memory types do not match in
Two different type memory modules in bank n
bank n
02FF: Memory test failed; total memory
expected (MB in hex) = nnn
Extended memory test failed; not all memory is being
used by the system
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