Troubleshooting Charts - IBM eserver xSeries 350 User Reference Manual

Table 17. Light Path Diagnostics.
System error Diagnostics
LED (on the panel LED on
information LED
panel)
Off None

Troubleshooting charts

Device and problem
CD-ROM drive
CD-ROM drive is not
recognized.
Diskette drive
Diskette drive activity light
stays on, or the system
bypasses the diskette drive.
Expansion enclosure
The SCSI expansion enclosure
used to work but does not
work now.
112
IBM® xSeries 350: User's Reference
The Light Path Diagnostics have not
detected a system error.
You can use the troubleshooting charts in this section to find solutions to problems
that have definite symptoms.
If you cannot find the problem in the troubleshooting charts, go to "Starting the
diagnostic programs" on page 96 to test the server. If you have run the diagnostic
tests or if running the tests does not reveal the problem, call for service.
Look for the symptom in the left column of the chart. Instructions and probable
solutions to the problem are in the right column. If you have just added new software
or a new option and your server is not working, do the following before using the
troubleshooting charts:
• Remove the software or device that you just added.
• Run the diagnostic tests to determine if your server is running correctly.
• Reinstall the new software or new device.
Table 18. Troubleshooting charts.
Verify that:
1. The primary IDE channel is enabled in the Configuration/Setup Utility
program.
2. All cables and jumpers are installed correctly.
3. The correct device driver is installed for the CD-ROM drive.
If there is a diskette in the drive, verify that:
1. The diskette drive is enabled in the Configuration/Setup Utility program.
2. The diskette is good and not damaged. (Try another diskette if you have one.)
3. The diskette contains the necessary files to start the server.
4. Your software program is working correctly.
If the diskette drive in-use light stays on, or the system continues to bypass the
diskette drive, call for service.
Verify that:
1. The cables for all external SCSI options are connected correctly.
2. The last option in each SCSI chain, or the end of the SCSI cable, is terminated
correctly.
3. Any external SCSI option is turned on. You must turn on an external SCSI option
before turning on the server.
For more information, see your SCSI and expansion enclosure documentation.
Cause
None
Suggested action
Action