Service manual

Contents
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BIOS Recovery............................................................................................................................................. 50
Troubleshooting Checklist............................................................................................................................ 51
General System Problems ........................................................................................................................... 52
Memory Problems ........................................................................................................................................ 54
CD-ROM Problems ...................................................................................................................................... 55
Flexible Disk Drive Problems ....................................................................................................................... 56
Keyboard and Mouse Problems................................................................................................................... 57
Network Interface Card Problems................................................................................................................ 58
Power Problems........................................................................................................................................... 58
SCSI Subsystem Problems.......................................................................................................................... 59
Video/Monitor Problems............................................................................................................................... 63
Configuration Problems................................................................................................................................ 65
Verifying Hard Disk Drive Operation ............................................................................................................ 66
Processor Problems..................................................................................................................................... 68
Printer/DataComm Problems ....................................................................................................................... 68
6..Replacing Parts .......................................................................................................................................... 71
Safety Information ........................................................................................................................................ 71
Service Tools Required................................................................................................................................ 71
Replacing the Bezel ..................................................................................................................................... 71
Removing the Bezel – Rack Mount ......................................................................................................... 72
Replacing the Bezel – Rack Mount.......................................................................................................... 72
Removing the Bezel – Pedestal............................................................................................................... 72
Replacing the Bezel – Pedestal............................................................................................................... 73
Replacing the CD ROM Drive ...................................................................................................................... 73
Replacing the Control Panel ........................................................................................................................ 74
Replacing Memory ....................................................................................................................................... 75
DIMM Replacement ................................................................................................................................. 77
Replacing the Hot-Swap Cage..................................................................................................................... 78
Replacing the Duplex SCSI Board............................................................................................................... 82
Replacing Power Supply Fans ..................................................................................................................... 83
Replacing the Flexible Disk Drive ................................................................................................................ 83
Replacing Hot-Swap Drive ........................................................................................................................... 84
Replacing the I/O Board............................................................................................................................... 85