IBM HS20 Hardware Maintenance Manual - Page 89

Broken CRU/FRU, Remove the first drive not recognized and try the hard disk drive - enclosure

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Page 89 highlights

Note: See "System" on page 94 to determine which components should be replaced by a field service technician. Diskette drive problems Symptom FRU/action Diskette drive activity LED stays 1. If there is a diskette in the drive, verify that: on, or the system bypasses the v The diskette is inserted correctly in the drive. diskette drive. v The diskette is good and not damaged. (Try another diskette if you have one.) - The drive light comes on (one-second flash) when the diskette is inserted. v The diskette contains the necessary files to start the computer. v The diskette drive is enabled in the Configuration/Setup utility program. 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. Cable. 4. Run diskette drive diagnostics. 5. Diskette drive. 6. Media tray card. Note: See "System" on page 94 to determine which components should be replaced by a field service technician. Expansion enclosure problems Symptom FRU/action The SCSI storage expansion unit used to work but does not work now. 1. Verify that the enclosure is installed correctly. 2. For more information, see the SCSI storage expansion unit documentation. Note: See "System" on page 94 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 1. Remove the first drive not recognized and try the hard disk drive the hard disk drive diagnostic diagnostic test again. test (Fixed Disk test). 2. If the remaining drives are recognized, replace the drive you removed with a new one. System stops responding during 1. Remove the hard disk drive being tested when the computer stopped hard disk drive diagnostic test. 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 94 to determine which components should be replaced by a field service technician. General problems Symptom FRU/action Problems such as broken cover v Broken CRU/FRU locks or indicator LEDs not working Chapter 8. Symptom-to-FRU index 79

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Note:
See “System” on page 94 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 is inserted correctly in the drive.
v
The diskette is good and not damaged. (Try another diskette if you have
one.)
–
The drive light comes on (one-second flash) when the diskette is inserted.
v
The diskette contains the necessary files to start the computer.
v
The diskette drive is enabled in the Configuration/Setup utility program.
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.
Cable.
4.
Run diskette drive diagnostics.
5.
Diskette drive.
6.
Media tray card.
Note:
See “System” on page 94 to determine which components should be replaced by a field service technician.
Expansion enclosure problems
Symptom
FRU/action
The SCSI storage expansion
unit used to work but does not
work now.
1.
Verify that the enclosure is installed correctly.
2.
For more information, see the SCSI storage expansion unit documentation.
Note:
See “System” on page 94 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 94 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
Chapter 8. Symptom-to-FRU index
79