Service manual

iv
The System Will Not Power Up..............................................................................................43
The System Will Not Boot ......................................................................................................44
Intermittent Failures ...............................................................................................................44
Troubleshooting Checklist ..........................................................................................................44
BIOS Recovery...........................................................................................................................47
Password Problems ...................................................................................................................49
General System Problems .........................................................................................................49
DIMM Memory Problems............................................................................................................52
CD-ROM Problems ....................................................................................................................53
Flexible Disk Drive Problems .....................................................................................................55
Keyboard and Mouse Problems .................................................................................................55
Network Interface Problems .......................................................................................................56
Power Problems .........................................................................................................................57
Printer/Datacomm Problems ......................................................................................................59
SCSI Subsystem Problems........................................................................................................60
PCI Board Problems...................................................................................................................63
Video/Monitor Problems .............................................................................................................64
6 Replacing Parts ........................................................................................................................67
Safety Information ......................................................................................................................67
Service Tools Required ..............................................................................................................67
Replacing the Pedestal Base .....................................................................................................67
Replacing the Pedestal Base.................................................................................................68
Replacing the System Battery ....................................................................................................68
Replacement ..........................................................................................................................69
Replacing the Bezel ...................................................................................................................69
Replacing the Pedestal Bezel ................................................................................................70
Removing the Rack Bezel......................................................................................................70
Replacing the Rack Bezel ......................................................................................................71
Replacing the CD ROM Drive ....................................................................................................71
Replacing the CD ROM Drive ................................................................................................72
Replacing the Control Panel.......................................................................................................72
Replacing DIMMs .......................................................................................................................74
Memory Configuration Guidelines..........................................................................................74
DIMM Removal ......................................................................................................................74
DIMM Replacement ...............................................................................................................75
Replacing the Hot Swap Drive Cage..........................................................................................76
Replacing the Hot Swap Drive Cage .....................................................................................78
Replacing the Duplex Card ........................................................................................................78
Replacing the Duplex Card ....................................................................................................80
Replacing the Fan Assembly......................................................................................................81
Replacing the Flexible Disk Drive ..............................................................................................83
Replacing the Flexible Disk Drive ..........................................................................................84
Replacing Hot Swap Drives........................................................................................................85
Removing Hot Swap Drives ...................................................................................................85
Replacing Hot Swap Drives ...................................................................................................86
Replacing Non Hot Swap Drives ................................................................................................87
Replacing Non-Hot Swap Drives ...........................................................................................88
Replacing PCI-Latch Hardware..................................................................................................88