IBM 8671 - Eserver xSeries 235, Maintenance And Troubleshooting Manual

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Note: See “System” on page 162 to determine which components should be replaced by a field service technician.
Diskette drive problems
Symptom FRU/action
Diskette drive activity LED stays
on, or the system bypasses the
diskette drive.
1. If there is a diskette in the drive, verify that:
v
The diskette drive is enabled in the Configuration/Setup utility program.
v The diskette is good and not damaged. (Try another diskette if you have
one.)
v The diskette is inserted correctly in the drive.
v
The diskette contains the necessary files to start the computer.
v
The software program is working properly.
v The cable is installed correctly (in the proper orientation).
2. To prevent diskette drive read/write errors, be sure the distance between
monitors and diskette drives is at least 76 mm (3 in.).
3. Run diskette drive diagnostics.
4. Cable.
5. Diskette drive.
6. System board.
Note: See “System” on page 162 to determine which components should be replaced by a field service technician.
Expansion enclosure problems
Symptom FRU/action
The SCSI expansion enclosure
used to work but does not work
now.
1. Verify that:
v The cables for all external SCSI options are connected correctly.
v
The last option in each SCSI chain, or the end of the SCSI cable, is
terminated correctly.
v
Any external SCSI option is turned on. You must turn on an external SCSI
option before turning on the computer.
2. For more information, see your SCSI expansion enclosure documentation.
Note: See “System” on page 162 to determine which components should be replaced by a field service technician.
Hard disk drive problems
Symptom FRU/action
Not all drives are recognized by
the hard disk drive diagnostic
test (Fixed Disk test).
1. Remove the first drive not recognized and try the hard disk drive
diagnostic test again.
2. If the remaining drives are recognized, replace the drive you removed with a
new one.
System stops responding during
hard disk drive diagnostic test.
1. Remove the hard disk drive being tested when the computer stopped
responding and try the diagnostic test again.
2. If the hard disk drive diagnostic test runs successfully, replace the drive you
removed with a new one.
Note: See “System” on page 162 to determine which components should be replaced by a field service technician.
General problems
Symptom FRU/action
Problems such as broken cover
locks or indicator LEDs not
working
v
Broken CRU/FRU
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xSeries 235 Type 8671: Hardware Maintenance Manual and Troubleshooting Guide