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

3.3V and 5 V PCI add-in cards, 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 software lock, 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

172

xSeries 343 Hardware Maintenance Manual

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IBM 343 manual Scsi