iv
Chapter 3
Error Registers
3.1
Ibox Status Register - I_STAT..................................................................3-2
3.2
Memory Management Status Register – MM_STAT.................................3-3
3.3
Dcache Status Register – DC_STAT.........................................................3-5
3.4
Cbox Read Register..................................................................................3-7
3.5
Miscellaneous Register (MISC) ................................................................3-9
3.6
Device Interrupt Request Register (DIRn, n=0,1) .................................... 3-12
3.7
Pchip Error Register (PERROR) .............................................................3-13
3.8
Failure Register ......................................................................................3-16
3.9
Function Register ................................................................................... 3-18
Chapter 4
Removal and Replacement
4.1
System Safety ..........................................................................................4-1
4.2
FRU List ..................................................................................................4-2
4.3
System Access .........................................................................................4-6
4.4
CPU Removal and Replacement ...............................................................4-8
4.5
Memory Module Removal and Replacement ..................................4-10
4.6
System Board Removal and Replacement ............................................... 4-12
4.7
PCI/ISA Option Removal and Replacement ............................................ 4-14
4.8
Server Feature Module Removal and Replacement.................................. 4-16
4.9
Power Supply Removal and Replacement ............................................... 4-18
4.10
Power Harness Removal and Replacement.............................................. 4-20
4.11
Power Transition Module Removal and Replacement.............................. 4-22
4.12
Auxiliary Fan Removal and Replacement ............................................... 4-24
4.13
System Fan Removal and Replacement................................................... 4-26
4.14
Cover Interlock Removal and Replacement............................................. 4-28
4.15
Operator Control Panel Removal and Replacement ................................ 4-30
4.16
CD-ROM Removal and Replacement .....................................................4-32
4.17
Floppy Removal and Replacement.......................................................... 4-34
4.18
SCSI Disk Removal and Replacement .................................................... 4-36
4.19
StorageWorks Backplane Removal and Replacement .............................. 4-38
4.20
StorageWorks UltraSCSI Bus Extender Removal and Replacement......... 4-40
Appendix A
Halts, Console Commands, and Environment
Variables
A.1
Halt Button Functions.............................................................................. A-2
A.2
Using the Halt Button .............................................................................. A-3
A.3
Halt Assertion ......................................................................................... A-4
A.4
Summary of SRM Console Commands .................................................... A-6
A.5
Summary of SRM Environment Variables ............................................... A-8
A.6
Recording Environment Variables ......................................................... A-10
