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172 xSeries 343 Hardware Maintenance Manual
problems (continued)
CD-ROM drive activity light, 116
confirm OS loading, 113
diskette drive light, 115
hard drive light, 115
initial system startup, 111
network, 116
no characters on screen, 114
PCI installation tips, 117
power light, 114
preparing system for diagnostic testing,
113
random error in data files, 112
screen characters incorrect, 115
system cooling fans do not rotate, 115
system lights, 113
processor, 72
removing, 73, 76, 77
selecting the correct processor, 72
Processor, 103, 104, 105
Processor Failure, 105
processor removal and installation, 72
R
real time clock, running SCU to configure
settings, 81
Recovery, 46
removal and installation
processor, 72
removal and replacement
memory, 71
server board, 83
removing
top cover, 68
replacement
fans, 88
replacement
3.3Vand5VPCIadd-incards,78
floppy disk drive, 85
front panel board, 87
hard disk drive, 64
power supply, 63
power supply cage, 90
replacingm, CD-ROM, 85
reset system, 111
S
safety, guidelines, 66
SCSI
bus termination requirements, 15
SCSI controller, 15
SCU
administrative password limits access to,
21
changing configuration, 33
inactivity (lockout) timer, 17
software locking feature, 19
secure mode, 20
affects boot sequence, 21
enter by setting passwords, 20
no booting from diskette without
password, 20
security
boot sequence, 21
enabling/disabling floppy writes, 21
locking mouse, keyboard with timer, 21
password, 21
secure mode, 20
secure mode, setting in SCU, 20
softwarelock,SCU,19
unattended start, 21
video blanking, 21
Security menu
configuring, Setup, 39
Sensor Data Record, See also SDR, 104
serial port connector, 93
server, cooling and airflow, 68
server board removal and replacement, 83
Server Management, 104
Setup
Advanced menu, 37
Boot Device Priority menu, 42
cannot enter, need to reconfigure diskette,
34
changing configuration, 33
Exit menu, 43
Main menu, 36
recording settings, 34
security menu contents, 39
Shadow, 103
Shutdown, 105