Silicon Graphics 1400 Installation and operation manual

SGI™1400 Server Family
Maintenance and Upgrades Guide
Document Number 007-3948-001

SGI™1400 Server Family Maintenance and Upgrades Guide
Document Number 007-3948-001
CONTRIBUTORS
Writing contributions by Mark Schwenden
Illustrated by Cheri Brown
Production by Heather Hermstad and David Clarke
Engineering contributions by Jim Oliver, Courtney Carr, Joan Eslinger, and Chander
Kant
St. Peter’s Basilica image courtesy of ENEL SpA and InfoByte SpA. Disk Thrower
image courtesy of Xavier Berenguer, Animatica.
© 1999, 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.
LIMITED AND RESTRICTED RIGHTS LEGEND
Use, duplication, or disclosure by the Government is subject to restrictions as set
forth in the Rights in Data clause at FAR 52.227-14 and/or in similar or successor
clauses in the FAR, or in the DOD, DOE, or NASA FAR Supplements. Unpublished
rights reserved under the Copyright Laws of the United States.
Contractor/manufacturer is Silicon Graphics, Inc., 1600 Amphitheatre Pkwy.,
Mountain View, CA 94043-1351.
Silicon Graphics is a registered trademark and SGI and the Silicon Graphics logo are
trademarks of Silicon Graphics, Inc. Pentium is a registered trademark and Xeon is a
trademark of the Intel Corporation. All other third party brands and names
mentioned in this document are the property of their respective owners.

iii
Contents
List of Figures vii
List of Tables ix
About This Guide xiii
1. Working Inside the System 1
Tools and Supplies Needed 1
Safety: Before You Remove the Access Cover 1
Warnings and Cautions 2
Removing the System Access Cover 3
Installing the Access Cover 3
Working in the Subchassis and Electronics Bay 5
Installing PCI Boards 7
Removing a PCI option Board 9
Removing the Front Panel Board 9
Installing the Front Panel Board 10
Removing the Diskette Drive 11
Installing the Diskette Drive 12
Peripheral Drives 13
Drive Cabling Considerations 13
IDE Requirements 13
SCSI Requirements 14
Installing 5.25-inch Peripherals in the Front Bays 14
Removing a 5.25-inch Peripheral from the Front Bay 18
Installing or Replacing the SCSI-B Cable 20

iv
Contents
System Fans 22
Removing the System Fan Assembly 22
Installing the System Fan Assembly 24
Removing an Individual System Fan 24
Installing an Individual System Fan 26
The Power Share Board 27
Replacing the Power Share Board (PSB) 27
2. Upgrading Baseboard Components 33
Baseboard 33
Removing the Baseboard 33
Installing the Baseboard 35
Memory 36
Removing the Memory Module 36
Installing the Memory Module 38
Removing DIMMs 38
Installing DIMMs 39
Processors 40
Removing a Processor 41
Installing a Processor 44
Installing the Processor Tabs 46
Installing Processor Heatsinks 47
Voltage Regulator Modules (VRMs) 49
Removing a VRM 51
Installing a VRM 52
Replacing the Backup Battery 53
3. SGI 1400 Server SCSI Backplane Installation 57
SCSI Backplane Warnings and Cautions 57
Safety: Before You Remove the Access Cover 57
General Procedure to Open the Chassis 57
Replacing an Existing Backplane 59
General Procedure to Close the Chassis 63

Contents
v
4. Technical Reference 65
Baseboard Connectors 65
Main Power Connector 68
Auxiliary Power 69
Diskette Drive 70
Front Panel Connector 72
The SMM Connector 74
The IPMB Connector 75
VGA Video Port Connector 76
Keyboard and Mouse 77
Parallel Port 78
Serial Ports A and B 79
Universal Serial Bus 80
Narrow SCSI Connector 81
Wide SCSI Connector 84
Internal IDE Connector 86
The Hard Drive LED Connector 88
ISA Connector Pinouts 89
The PCI Connectors 93
Baseboard Jumpers 99
General Procedure to Change a Jumper Setting 100
CMOS Clear Jumper 101
Password Clear Jumper 101
Recovery Boot Jumper 102
System I/O Addresses 104
Memory Map Address Range 108
Interrupts 109
Video Modes 110

vi
Contents
A. Equipment Log and Configuration Worksheets 117
Equipment Log 117
Configuration Worksheets 120
Current Usage 120
Calculating Power Usage 120
Worksheet, Calculating DC Power Usage 121
Worksheet, Total Combined Power Used by the System 122
System Setup Utility (SSU) Worksheets 123
Adding and Removing Boards 123
ISA Board Definition 124
Baseboard (SSU, Change Configuration Settings) 125
Management Subsystem, System Sensor Control Worksheet 129
BIOS Setup Worksheets 129
B. Environmental Specifications 137
Environmental Specifications 137
C. Chassis Warnings and Safety 139
Power Warnings 139
Cautions When Removing the Chassis Covers 139
Index 143

vii
List of Figures
Figure 1-1 Removing the Access Cover 4
Figure 1-2 Opening the Subchassis and Electronics Bay 6
Figure 1-3 Installing a PCI option Board 8
Figure 1-4 Removing the Front Panel Board 10
Figure 1-5 Removing the Diskette Drive from the Chassis 11
Figure 1-6 IDE Cable Dimensions 13
Figure 1-7 Removing EMI Shields 16
Figure 1-8 Snap-in Plastic Slide Rails 17
Figure 1-9 Removing a Removable Media Device 19
Figure 1-10 SCSI-B Cable Installation 21
Figure 1-11 Removing the Fan Assembly 23
Figure 1-12 Fan Cabling 25
Figure 1-13 Chassis Side View 28
Figure 1-14 Removing the Existing Board and Bracket Assembly 29
Figure 1-15 Removing the Existing Board from its Bracket 30
Figure 1-16 Attaching the New Board to its Bracket 31
Figure 1-17 Installing the New Board and Bracket Assembly 32
Figure 2-1 Removing the Baseboard 35
Figure 2-2 Removing the Memory Module 37
Figure 2-3 Installing a DIMM 40
Figure 2-4 Releasing the Retention Module Bracket 42
Figure 2-5 Removing a Processor 43
Figure 2-6 Installing a Processor 45
Figure 2-7 Installing Tabs on a Processor S.E.C. Cartridge 46
Figure 2-8 Installing a Heatsink on a Processor S.E.C. Cartridge 48
Figure 2-9 Processor and Corresponding VRM Locations 50
Figure 2-10 Installing a VRM 52

viii
List of Figures
Figure 2-11 Replacing the Lithium Battery 54
Figure 3-1 Chassis Side View 58
Figure 3-2 Removing the Backplane from the Chassis 60
Figure 3-3 Aligning and Attaching the Backplane 61
Figure 3-4 Reconnecting Cables to the New Backplane 62
Figure 4-1 Baseboard Layout 66
Figure 4-2 Main Power Connector Pins 68
Figure 4-3 Auxiliary Power Connector 69
Figure 4-4 Diskette Drive Connector 70
Figure 4-5 Front Panel Connector 72
Figure 4-6 Server Management Module (SMM) Connector 74
Figure 4-7 The IPMB Connector 75
Figure 4-8 VGA Video Port Connector 76
Figure 4-9 Keyboard and Mouse Connector 77
Figure 4-10 Parallel Port Connector 78
Figure 4-11 Serial Port A (External) Connector 79
Figure 4-12 USB External Connector 80
Figure 4-13 Narrow SCSI Connector 81
Figure 4-14 Wide SCSI Connector 84
Figure 4-15 Internal IDE Connector 86
Figure 4-16 Hard Drive LED Connector 88
Figure 4-17 Baseboard Jumpers 99

ix
List of Tables
Table 2-1 VRM and Processor Power Sequence 49
Table 2-2 Processor and VRM Population Sequencing 49
Table 4-1 Main Power Connector Pinouts 68
Table 4-2 Auxiliary Power Connector Pinouts 69
Table 4-3 Diskette Drive Connector Pinouts 70
Table 4-4 Front Panel Connector Pinouts 72
Table 4-5 Server Management Module Connector Pinouts 74
Table 4-6 IPMB Connector Pinouts 75
Table 4-7 Video Port Connector Pinouts 76
Table 4-8 Keyboard and Mouse Connector Pinouts 77
Table 4-9 Parallel Port Connector Pinout 78
Table 4-10 Serial Port A (External) Connector Pinout 79
Table 4-11 USB External Connector Pinout 80
Table 4-12 USB Internal Header Pinout 80
Table 4-13 Narrow SCSI Connector Pinouts 81
Table 4-14 Wide SCSI Connector Pinouts 84
Table 4-15 IDE Connector Pinouts 86
Table 4-16 Hard Drive LED Connector Pinouts 88
Table 4-17 ISA Connector Pinouts 89
Table 4-18 PCI Connector Pinouts 93
Table 4-19 Baseboard Jumper Summary 100
Table 4-20 BIOS Recovery Beep Codes 103
Table 4-21 System I/O Addresses 104
Table 4-22 Memory Map Address Range 108
Table 4-23 Interrupt I/O Descriptions 109
Table 4-24 Standard VGA Modes 110
Table 4-25 Extended VGA Modes 111

x
List of Tables
Table A-1 Equipment Log 117
Table A-2 Power Usage Worksheet 121
Table A-3 Power Usage Worksheet (Total Watts) 122
Table A-4 Add or Remove PCI Boards 123
Table A-5 ISA Board Definition 124
Table A-6 Systems Group 125
Table A-7 Memory Subsystem Group 125
Table A-8 Onboard Disk Controllers 125
Table A-9 Onboard Communications Devices 126
Table A-10 Diskette Drive Subsystems Group 126
Table A-11 IDE Subsystem Group 126
Table A-12 Multiboot Group 127
Table A-13 Keyboard and Mouse Subsystem Group 127
Table A-14 Console Redirection 127
Table A-15 Security Subsystems Worksheet 128
Table A-16 SCSI ROM BIOS Options Group 128
Table A-17 Management Subsystem Group 128
Table A-18 Sensor Control Values 129
Table A-19 Main Menu 129
Table A-20 Primary Master and Slave Submenu 130
Table A-21 Keyboard Features Submenu 130
Table A-22 Advanced Menu 131
Table A-23 PCI Device, Embedded SCSI Submenu 131
Table A-24 PCI Devices Submenu 131
Table A-25 I/O Device Configuration Submenu 132
Table A-26 Advanced Chipset Control Submenu 133
Table A-27 Security Menu 133
Table A-28 Server Menu 134
Table A-29 System Management Submenu 134
Table A-30 Console Redirection Submenu 134
Table A-31 Boot Menu 135

List of Tables
xi
Table A-32 Boot Device Priority Submenu 135
Table A-33 Hard Drive Submenu 135
Table B-1 Environmental Specifications 137

xiii
About This Guide
This guide tells you how to remove and install field replaceable units (FRUs) internal to
the server. Only trained or qualified technical personnel should work inside the chassis.
Note: Information on the server’s system setup utility (SSU) and replacement of external
devices are covered in the SGI 1400 Server Family User’s Guide.
The following topics are covered in this manual:
• Chapter 1, “Working Inside the System,” contains all the power and ESD warnings
applicable to working inside the system. The chapter introduces proper access
procedure, how to install option boards, and understand internal SCSI and IDE
cabling.
• Chapter 2, “Upgrading Baseboard Components,” covers removing and installing
the baseboard, processors, memory DIMMs, and VRMs.
• Chapter 3, “SGI 1400 Server SCSI Backplane Installation,” details the steps for
replacing the server system SCSI backplane.
• Chapter 4, “Technical Reference,” lists information on connector pinouts and
baseboard locations, baseboard jumpers, I/O addresses, memory map addresses,
baseboard interrupts, and video modes.
• Appendix A contains a group of equipment logs and worksheets that should be
used when maintaining or upgrading the server.
• Appendix B lists the server’s basic environmental specifications.
• Appendix C provides additional basic chassis warnings and voltage related
cautions.

1
Chapter 1
1. Working Inside the System
Tools and Supplies Needed
• Phillips (cross-head) screwdriver (#1 and #2 bit).
• Small flat-bladed screwdriver.
• Jumper removal tool or needle-nosed pliers.
• Antistatic wrist strap and conductive foam pad (recommended).
• Pen or pencil.
• Equipment log: as you integrate new parts into the system, add information about
them to your equipment log, see Appendix A. Record the model and serial number
of the system, all installed options, and any other pertinent information specific to
the system. You will need this information when running the SSU.
Safety: Before You Remove the Access Cover
Before removing the access cover at any time to work inside the system, observe these
safety guidelines.
1. Turn off all peripheral devices connected to the system.
2. Turn off the system by using the push-button on/off power switch on the front of
the system.
3. Unplug the AC power cords from the system or wall outlet.
4. Label and disconnect all peripheral cables and all telecommunication lines
connected to I/O connectors or ports on the back of the system.
5. Provide some electrostatic discharge (ESD) protection by wearing an antistatic wrist
strap attached to chassis ground of the system—any unpainted metal surface—
when handling components.

2
Chapter 1: Working Inside the System
Warnings and Cautions
These warnings and cautions apply whenever you remove the access cover of the
system. Only a technically qualified person should integrate and configure the system.
Warning: SYSTEM POWER ON/OFF: The on/off button on the front panel DOES NOT
turnoffthesystemACpower.Toremovepowerfromsystem,youmustunplugtheAC
power cords from the wall outlet or the system.
Hazardous voltage, current, and energy levels are present inside the power supply.
There are no user-serviceable parts inside it; servicing should be done by technically
qualified personnel.
Hazardous electrical conditions may be present on power, telephone, and
communication cables. Turn off the system and disconnect the power cords,
telecommunications systems, networks, and modems attached to the system before
opening it. Otherwise, personal injury or equipment damage can result.
Caution: Electrostatic discharge (ESD) and ESD protection: ESD can damage disk
drives, boards, and other parts. We recommend that you do all procedures in this chapter
only at an ESD-protected workstation. If one is not available, provide some ESD
protection by wearing an antistatic wrist strap attached to chassis groundany
unpainted metal surfaceon your system when handling parts.
Always handle boards carefully. They can be extremely sensitive to ESD. Hold boards
only by their edges. After removing a board from its protective wrapper or from the
system, place it component-side UP on a grounded, static-free surface. If you place the
baseboard on a conductive surface, the battery leads may short out. If they do, this will
result in a loss of CMOS data and will drain the battery. Use a conductive foam pad if
available but NOT the board wrapper. Do not slide board over any surface.
For proper cooling and airflow, always install the chassis access cover before turning on
the system. Operating the system without the cover in place can damage system parts.

Removing the System Access Cover
3
Removing the System Access Cover
You need to remove the system access cover, and in some cases the front bezel, to reach
components inside the system. Facing the front of the system, the access cover is on the
right side for pedestal-mounted (tower) servers, and on the top for rack-mounted
servers.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Turn off all peripheral devices connected to the system.
3. If you have not already done so, turn off the system by using the power on/off
switch on the front panel AND unplug all AC power cords.
4. Label and disconnect all peripheral cables attached to the I/O panel on the back of
the system.
5. Remove and save the three screws from the back of the access cover; you will need
them later to reattach the cover.
Note: Be sure the chassis key lock on the front of the system is in the unlocked
position. Otherwise, you will be unable to remove the cover. The chassis keys are not
all the same, you cannot use one key to open multiple units.
6. Place the fingertips of your right hand under the built-in handle on the back of the
cover. A rounded, rectangular depression in the front middle of the access cover
serves as another handle.
7. Using an even pull, slide the cover backward, about an inch, until it stops.
8. Pull the entire cover outward, straight away from the chassis, to disengage the tabs
from the notches in the top and bottom edges of the chassis. Set the cover aside.
Installing the Access Cover
1. Before replacing the access cover, check that you have not left loose tools or parts
inside the system.
2. Check that cables, PCI option boards, and other components are properly installed.
3. Position the cover over the chassis so that the rows of tabs align with slots in the
chassis. Slide the cover toward the front of the system until the tabs on the cover
firmly engage in the chassis.
4. Attach the cover to the chassis with the three screws you removed earlier, and
tighten them firmly (6.0 inch-pounds).

4
Chapter 1: Working Inside the System
5. Connect all external cables and the power cords to the system.
Figure 1-1 Removing the Access Cover

Working in the Subchassis and Electronics Bay
5
Working in the Subchassis and Electronics Bay
The chassis is comprised of three parts:
• the main chassis
• a swing-out subchassis at the front
• a swing-out subchassis, called the electronics bay, at the rear
To access components in some instances, you must swing away and/or completely
remove the subchassis and electronics bay.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Turn off all peripheral devices connected to the system.
3. Turn off the system power by using the power on/off switch on the front panel
AND unplug all AC power cords.
4. Label and disconnect all peripheral cables attached to the I/O panel on the back of
the system.
5. Remove and save the three screws from the back of the access cover; you will need
them later to reattach the cover.
6. Remove the access cover.
7. Remove the two screws on the top and bottom edges of the chassis (see Figure 1-2).
These screws attach the front subchassis and the electronics bay to the main chassis.
Caution: You must disconnect all cabling to the electronics bay before rotating or
removing the bay. Failure to do so can result in serious damage to system
components. The location of the main connectors in the electronics bay is alsoshown
in Figure 1-2.
8. Rotate the front subchassis left, away from the main chassis, until it stops.
9. Disconnect and label all cabling to the electronics bay.

6
Chapter 1: Working Inside the System
10. Using the vertical edge of the electronics bay as a handle, rotate the bay right, away
from the main chassis, until it stops.
11. If necessary, completely remove the subchassis and electronics bay: this requires
rotating the bays outward until the two pins that function as hinges for the bays
slide out of their slots. Set the bays aside.
Figure 1-2 Opening the Subchassis and Electronics Bay