Service manual

Index-2
CD-ROM
removal and replacement, 7-60
COM1 port, 2-19
Command codes, 5-54
Command summary (SRM), B-2
Components
housed in system drawer, 1-2, 1-
4, 1-6
Console
SRM, 2-23
Console device determination, 2-18
Console device options, 2-19
Console device, changing, 2-19
console environment variable, SRM,
2-21, 2-23
Console power-up tests, 2-16
Control panel, 1-12, 2-2
display, 2-21
Halt button, 1-13
LCD potentiometer, 2-2
messages in display, 2-3
Controls
Halt button, 1-13
Cover interlocks, 1-3, 1-5, 1-7, 4-7
overriding, 4-7
removal and replacement, 7-50,
7-52
CPU and bridge module LEDs, 3-2
CPU LEDs, 3-3
CPU module, 1-20
configuration rules, 1-21
removal and replacement, 7-18
variants, 1-21
CPU modules, 1-17, 7-3
D
DECevent, 5-6
report formats, 5-10
DIAGNOSE command, 5-7
Diagnostics, test command, 3-12
disable command, RCM, C-9
display command (LFU), A-24, A-25
Double error halt, 5-57
Drives, CD-ROM and floppy, 1-12
E
ECC syndrome bits, 5-53
ECU, running, A-4
EL_ADDR Register, 6-6
EL_STAT Register, 6-2
enable command, RCM, C-9
Environment variables
SRM console, B-4
Environment variables, SRM, 1-15
auto_action, 2-23
console, 2-21, 2-23
os_type, 2-23
Error detector placement, 5-2
Error log events, 5-5
Error registers, 6-1
Event files, translating, 5-7
Events, filtering, 5-8
exit command (LFU), A-13, A-19, A-
23, A-24, A-25
External Interface Address Register,
6-6
External Interface Registers
loading and locking rules, 6-7
External Interface Status Register, 6-2
F
Fail-safe loader, 2-24
Fan removal and replacement, 7-48
Fan tray cables (cabinet), 7-4
Fan tray, cabinet system, 1-9
Fan tray, LEDs, 3-5
Fans, 7-3
Fans, top of cabinet, 3-5
Fatal errors, 5-5
FEPROM
and XSROM test flow, 2-13
defined, 2-5
Firmware
RCM, C-6
updating, A-8
updating from AlphaBIOS, A-27
updating from CD-ROM, A-9
updating from floppy disk, A-14,
A-16