Contents
1 System Description
Introduction....................................................... .
..
.......
. ......................
1-1
System
Box
.................................................................................... 1
-3
System
Board .......................................................................... 1-3
SIMMs
............................................................................... 1-3
External
Cache ................................................................. 1-3
Power
Supply ..........................................................................
1-4
3.5-lnch
Disk
Drives ................................................................ 1-4
2.5-lnch
IDE
Disk
Drive
............................................................
1-4
Intelligent Graphics Controller .................................................
1-4
Battery
..................................................................................... 1-5
SCSI
Expansion
Box
...................................................................... 1-5
Monitors ......................................................................................... 1-5
Keyboard ..................................................................................... 1-6
Muuse ............................................................................................
1-6
2 Troubleshooting
Introduction ..........................................................................................
2-1
Special Tools ........................................................................................
2-1
POST
.................................................................................................... 2-3
System Board Hardware Tests ..................................................... 2-3
Peripheral Hardware Tests ........................................................... .2-4
POST
Sequence ................................................................................... 2-5
POST
Error
Messages.... . . .................................................... 2-6
Beep Codes ........................................................................................
2-11
Initial Troubleshooting ....................................................................... .2-15
System
Box
Troubleshooting ............................................................. 2-16
Disk Drives .......................................................................................... 2-18
Monitor ............................................................................................... 2-19
SCSI
Expansion
Box
...........................................................................
2-20
DH.:;c
433
Workstation Service Manual