Silicon Graphics 1450 Operating manual

SGI™1450 Server
Maintenance Guide
Document Number 007-4276-001

Cover design by Sarah Bolles, Sarah Bolles Design, and Dany Galgani, SGI Technical Publications.
© 2000, Silicon Graphics, Inc.— All Rights Reserved
The contents of this document may not be copied or duplicated in any form, in whole or in part, without the prior written permission of Silicon
Graphics, Inc.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications.
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007-4276-001 iii
Record of Revision
Version Description
001 June 2000
Initial Rev

007-4276-001 v
Contents
Figures ..........................xi
Tables ..........................xiii
About This Guide.......................xv
ObtainingPublications.....................xv
ReaderComments.......................xv
1. Detailed Chassis Description ...................1
ChassisFeatures.......................2
Peripherals.........................9
PeripheralBay.......................9
DeviceBay......................9
MediaBay.......................9
HardDriveBay......................10
PowerSubsystem.......................11
SystemCooling .......................14
E-Bay..........................17
ChassisFrontControlsandIndicators.................18
RearPanelI/OPortsandFeatures..................19
2. Removing and Installing System Components ..............21
ToolsandSuppliesNeeded....................22
Pre-InstallationSafetyPrecautions..................22
FrontCover.........................23
RemovingtheFrontCover...................23
InstallingtheFrontCover...................24
TopCover.........................25
RemovingtheTopCover ...................25
InstallingtheTopCover....................25

vi 007-4276-001
Contents
MemoryRetentionBar......................26
RemovingtheMemoryRetentionBar................26
InstallingtheMemoryRetentionBar................27
Baseboard.........................27
RemovingtheBaseboard....................28
InstallingtheBaseboard....................31
PowerSubsystem.......................33
RemovingaPowerSupplyModule.................35
InstallingaPowerSupplyModule.................35
RemovingthePowerSubsystemBay................36
InstallingthePowerSubsystemBay.................37
CoolingSystem........................38
RemovingtheFanBoardAssembly.................39
InstallingtheFanBoardAssembly.................40
ReplacingtheFanBoard....................40
Removing and Installing Individual Fans ...............42
HardDriveBay........................42
RemovingtheHardDriveBay..................43
InstallingtheHardDriveBay..................44
PeripheralDevices.......................45
RemovingaDrivefromtheMediaBay................45
InstallingaDriveintheMediaBay.................46
ReplacingaDriveintheDeviceBay.................46
SCSIRequirements.......................47
3. Removing and Installing Baseboard Components .............49
ToolsandSuppliesNeeded....................50
Pre-InstallationSafetyPrecautions..................50
BaseboardConnectorandComponentLocations..............52
Memory..........................53
RemovingtheMemoryModule..................55
InstallingtheMemoryModule..................55
RemovingDIMMs......................56
InstallingDIMMs......................56

Contents
007-4276-001 vii
Processors.........................57
RemovingaProcessor....................59
InstallingaProcessor.....................59
RemovingProcessorRetentionMechanisms..............59
InstallingProcessorRetentionMechanisms..............60
InstallingProcessorHandles ..................60
InstallingProcessorHeatsinks..................60
VoltageRegulatorModules(VRMs)..................61
RemovingaVRM......................62
InstallingaVRM......................62
BackupBattery........................63
Add-inBoards........................65
Removinga32-bit,33-MHzHalf-LengthPCIAdd-inBoard .........65
Installinga32-bit,33-MHzHalf-LengthPCIAdd-inBoard..........66
Removinga64-bit,66/33-MHzHot-PlugPCIAdd-inBoard.........67
Installinga64-bit,66/33-MHzHot-PlugPCIAdd-inBoard..........69
ICMBCard.........................70
InstallinganICMBCard....................71
RemovinganICMBCard ...................73
4. Solving Problems .......................75
ResettingtheSystem......................75
InitialSystemStartup......................75
NewApplicationSoftware....................76
AftertheSystemHasBeenRunningCorrectly...............77

viii 007-4276-001
Contents
SpecificProblemsandCorrectiveActions................77
PowerLightDoesNotLight...................78
NoBeepCodes.......................78
NoCharactersAppearonScreen .................79
CharactersAreDistortedorIncorrect................79
SystemCoolingFansDoNotRotateProperly..............80
DisketteDriveActivityLightDoesNotLight..............80
HardDriveActivityLightDoesNotLight...............81
CD-ROMDriveActivityLightDoesNotLight .............81
ProblemswithApplicationSoftware................81
ErrorandInformationalMessages..................82
EquipmentLog........................84
A. Technical Reference ......................87
InternalCablesandConnectors...................87
ConnectorsAccessibletotheUser..................90
KeyboardandMousePorts...................90
SerialPorts........................90
ParallelPort .......................91
VideoPort........................92
UniversalSerialBus(USB)Interface.................93
ICMBConnectors......................94
EthernetConnector.....................94
InternalSCA-2HDDConnector..................95
ExternalAdaptecUltra160/mSCSI.................97
ACPowerInput......................99
PeripheralAdapterBoardsandConnectors...............100
CD-ROMConnectors....................100
FloppyConnectors ....................103

Contents
007-4276-001 ix
BaseboardConnectors .....................105
PowerDistributionBoardInterfaceConnectors(J9B1,J9D1,J9B2)........107
FrontPanelInterface(J9E3)...................111
Hot-PlugPCIIndicatorBoardInterface(J3D1).............113
MemoryModuleInterface(J6F1).................115
ProcessorModuleConnector(J7A1,J7B1,J7C1,J7D1)...........119
ProcessorTermination,Regulation,andPower.............123
TerminationCard......................125
ServerMonitorModuleConnector(J7H1)...............125
SMBusConnector(J9E4)....................127
ICMBConnector(J1D2)....................127
Auxiliary I2CConnector(J9E4)..................128
BaseboardFanConnectors(J3C1,J3A1,J4A1,J4C1)............128
InternalDiskDriveLEDConnection................130
BaseboardJumpers......................131
ChangingJumperSettings....................133
CMOSClearJumper.....................133
PasswordClearJumper....................135
RecoveryBootJumper....................136
Interrupts.........................137
VideoModes........................138
B. Physical Environment Specifications .................141
Index ..........................143

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Figures
Figure 1-1 ServerinRack-MountableConfiguration........3
Figure 1-2 FrontCoverRetainingScrews ...........4
Figure 1-3 TopCoverThumbscrew.............5
Figure 1-4 (Left) Server without Covers. (Right) Overhead View of E-Bay . . 6
Figure 1-5 HardDriveinDriveCarrier............10
Figure 1-6 PowerSubsystem...............12
Figure 1-7 FanBoardAssembly..............15
Figure 1-8 FanLEDs .................16
Figure 1-9 FrontPanelControlsandIndicators..........18
Figure 1-10 RearPanelI/OPortsandFeatures..........19
Figure 2-1 MemoryRetentionBar..............27
Figure 2-2 PowerSupplyACBracket.............29
Figure 2-3 E-BayRetainingScrews.............30
Figure 2-4 RearRetentionMechanism............31
Figure 2-5 PowerSubsystem...............34
Figure 2-6 MetalPlateCoveringthePowerSubsystemBay......38
Figure 2-7 FanBoardAssemblyScrew............39
Figure 2-8 FanAssemblyRotatedawayFromItsBase........41
Figure 2-9 HardDriveBayTabs..............43
Figure 2-10 RemovingtheHardDriveBayfromtheChassis......44
Figure 2-11 LocationoftheMediaBayScrew...........45
Figure 3-1 BaseboardConnectorandComponentLocations......52
Figure 3-2 MemoryModuleDIMMInstallationSequence.......54
Figure 3-3 DIMMOrientationinaMemoryModule........57
Figure 3-4 ProcessorOrientationandComponents.........58
Figure 3-5 InstallingaVRM...............63
Figure 3-6 FrontHot-PlugRetentionMechanism.........68

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Figures
Figure 3-7 ICMBCard.................71
Figure 3-8 ExampleofanICMBCardAttachedtoaChassis......72
Figure 3-9 InternalCableAttachedtotheICMBCard........72
Figure 3-10 ExternalCableAttachedtotheCard..........73
Figure A-1 DetailedDiagramofConnectorLocations.......105
Figure A-2 BaseboardConfigurationJumpers .........131

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Tables
Table 1-1 SGI1450ServerPhysicalSpecifications.........2
Table 1-2 ChassisFeatureSummary.............7
Table 1-3 HardDriveLEDStateStatus............11
Table 1-4 ACPowerLEDStateStatus............14
Table 1-5 FanLEDStateStatus..............16
Table 3-1 VRM/ProcessorPowerSequencing..........61
Table 3-2 Processor/VRMPopulationSequencing ........61
Table 4-1 ResettingCommands..............75
Table 4-2 StandardBIOSPort-80Codes............82
Table 4-3 RecoveryBIOSPort-80Codes............83
Table 4-4 EquipmentLog................84
Table A-1 SGI1450serverCablesandConnectors.........87
Table A-2 KeyboardandMouseConnectors..........90
Table A-3 SerialPorts.................91
Table A-4 ParallelPort.................91
Table A-5 VideoPort.................92
Table A-6 USBConnector................93
Table A-7 ICMBConnectors...............94
Table A-8 EthernetConnector...............94
Table A-9 InternalSCA-2HDDConnector...........95
Table A-10 ExternalAdaptecUltra160/mSCSI..........97
Table A-11 CD-ROMAdapterBoard40PositionIDEConnector.....100
Table A-12 CD-ROMAdapterBoardPowerConnector........101
Table A-13 AudioConnector...............101
Table A-14 CD-ROMJAEConnector.............101
Table A-15 34-PositionFloppyConnectorPin-Out.........103
Table A-16 FloppyAdapterBoardPowerConnector........104

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Tables
Table A-17 FFCconnector...............104
Table A-18 ConnectorDescription.............106
Table A-19 MainPowerConnectorA(J9B1)..........108
Table A-20 MainPowerConnectorB(J9D1)..........109
Table A-21 AuxiliaryPowerConnector(J9B2) .........110
Table A-22 FrontPanelConnector(J9E3)...........111
Table A-23 Hot-PlugIndicatorBoardConnectorPinout(J3D1).....114
Table A-24 MemoryModuleInterface............115
Table A-25 ProcessorCardConnector(J7A1,J7B1,J7C1,J7D1).....119
Table A-26 ProcessorVRMConnectors(J2A2,J2B1,J2C1)......123
Table A-27 ServerMonitorModuleConnectorPinout.......126
Table A-28 SMBusConnector(J9E4)............127
Table A-29 ICMBConnector(J1D2).............128
Table A-30 IMBConnector(J8F1).............128
Table A-31 ProcessorFanConnector#1(J3C1).........129
Table A-32 ProcessorFanConnector#2(J3A1).........129
Table A-33 ProcessorFanConnector#3(J4A1).........130
Table A-34 ProcessorFanConnector#4(J4C1).........130
Table A-35 InternalDiskDriveLEDConnector.........130
Table A-36 ConfigurationJumperSettings ..........132
Table A-37 ConfigurationofJumpers............132
Table A-38 BeepCodes................136
Table A-39 InterruptDefinitions.............137
Table A-40 StandardVGAModes.............138
Table B-1 EnvironmentalSpecifications...........141

007-4276-001 xv
About This Guide
This guide contains a detailed description of the SGI™ 1450 server chassis and provides
information on removing and installing field-replaceable components.
The information in this guide is intended for trained service personnel.
The following topics are covered:
• Detailed Chassis Description
• Removing and Installing System Components
• Removing and Installing Baseboard Components
•SolvingProblems
See the SGI 1450 Server User’s Guide for information on installing customer-replaceable
components and configuring software and utilities.
See the SGI 1450 Server Mounting Instructions for instructions on mounting the SGI 1450
server in a 19-inch rack.
See the SGI 1450 Server Quick Start Guide for information on setting up your system.
Obtaining Publications
To obtain SGI documentation, go to the SGI Technical Publications Library at
http://techpubs.sgi.com.
Reader Comments
Ifyouhavecommentsaboutthetechnicalaccuracy,content,ororganizationofthis
document, please tell us. Be sure to include the title and document number of the manual

xvi 007-4276-001
About This Guide
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 the following address:
[email protected]
• Use the Feedback option on the Technical Publications Library World Wide Web
page:
http://techpubs.sgi.com
• Contact your customer service representative and ask that an incident be filed in the
SGI incident tracking system.
• Send mail to the following address:
Technical Publications
SGI
1600 Amphitheatre Pkwy., M/S 535
Mountain View, California 94043-1351
• Send a fax to the attention of “Technical Publications” at [phone].
SGIvaluesyourcommentsandwillrespondtothempromptly.

007-4276-001 1
Chapter 1
1. Detailed Chassis Description
This chapter provides a detailed description of chassis features. For a general
description, see the SGI 1450 Server User’s Guide.
The following sections are covered:
• Chassis Features
• Peripherals
•HardDriveBay
•PowerSubsystem
• System Cooling
•E-Bay
• Chassis Front Controls and Indicators
• Rear Panel I/O Ports and Features

2007-4276-001
1: Detailed Chassis Description
Chassis Features
The SGI 1450 server is designed either to be mounted in a standard 19-inch rack (rack
mode) or to stand upright (pedestal mode). Table 1-1 shows the physical specifications
for the SGI 1450 server in rack mode.
For instructions on mounting the SGI 1450 server in a 19-inch rack, see the SGI 1450
Server Mounting Instructions.
Table 1-1 SGI 1450 Server Physical Specifications
Specification Rack Mode
Height 4u (7 inches)
Width 17.5-inch rack
Depth 26.5 inches
Weight 57 lbs (26 kg), minimum configuration
88 lbs (40 kg), maximum configuration
Required front clearance 3 inches (inlet air temperature <35 °C / 95 °F)
Required rear clearance 6 inches (no airflow restriction allowed)
Required side clearance 1 inch

Chassis Features
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Figure 1-1 shows an SGI 1450 server in rack-mountable configuration.
Figure 1-1 Server in Rack-Mountable Configuration
A. Top cover. The top cover protects the contents of the chassis.
B. Front cover. The front cover protects the peripheral devices.
C. Front bezel door. When this door is open, you can access hard drives and peripheral
devices.
D. Front bezel.
A
B
C
D

4007-4276-001
1: Detailed Chassis Description
The chassis has two covers: a front cover and a top cover. The front cover is held in place
by three screws. The screws are noted by “A” in Figure 1-2.
Figure 1-2 Front Cover Retaining Screws
A