IBM IntelliStation Z Pro Type 6221 Hardware Maintenance Manual page 100

CD-ROM drive problems
Symptom
CD-ROM drive is not
recognized.
CD is not working properly.
CD-ROM drive tray is not
working. (The computer must be
turned on.)
Diskette drive problems
Symptom
Diskette drive activity LED stays
on, or the system bypasses the
diskette drive.
Expansion enclosure problems
Symptom
The SCSI expansion enclosure
used to work but does not work
now.
90
IBM IntelliStation Z Pro Type 6221: Hardware Maintenance Manual
FRU/action
1. Verify that:
The IDE channel to which the CD-ROM drive is attached (primary or
v
secondary) is enabled in the Configuration/Setup Utility program.
v All cables and jumpers are installed correctly.
v The correct device driver is installed for the CD-ROM drive.
2. Run CD-ROM drive diagnostics.
3. CD-ROM drive.
1. Clean the CD.
2. Run CD-ROM drive diagnostics.
3. CD-ROM drive.
1. Insert the end of a straightened paper clip into the manual tray-release
opening.
2. Run CD-ROM drive diagnostics.
3. CD-ROM drive.
FRU/action
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.
FRU/action
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.