IBM 7985, Problem Determination And Service Manual

Page: 55 / 218

Troubleshooting tables
Use the troubleshooting tables to find solutions to problems that have identifiable
symptoms.
If you cannot find the problem in these tables, see “Running the diagnostic
programs” on page 55 for information about testing the server.
If you have just added new software or a new optional device and the server is not
working, complete the following steps before using the troubleshooting tables:
1. Check the system-error LED on the operator information panel; if it is lit, check
the LEDs on the system board (see “System-board LEDs” on page 17).
2. Remove the software or device that you just added.
3. Run the diagnostic tests to determine whether the server is running correctly.
4. Reinstall the new software or new device.
CD or DVD drive problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See Chapter 4, “Parts listing, System x3655, Type 7985 and 7943,” on page 93 to determine which
components are customer replaceable units (CRU) and which components are field replaceable units
(FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
The CD or DVD drive is not
recognized.
1. Make sure that:
v The IDE channel to which the CD-RW/DVD drive is attached (primary) is
enabled in the Configuration/Setup Utility program.
v
All cables and jumpers are installed correctly.
v
The signal cable and connector are not damaged and the connector pins are
not bent.
v
The correct device driver is installed for the CD-RW/DVD drive.
2. Run the CD-RW/DVD drive diagnostic programs.
3. Reseat the following components:
a. CD-RW/DVD drive
b. IDE/Ultrabay Enhanced (UBE) interposer card cable
4. Replace the components listed in step 3 one at a time, in the order shown,
restarting the server each time.
A CD or DVD is not working
correctly.
1. Clean the CD or DVD.
2. Run the CD-RW/DVD drive diagnostic programs.
3. Check the connector and signal cable for bent pins or damage.
4. Reseat the CD-RW/DVD drive.
5. Replace the CD-RW/DVD drive.
The CD or DVD drive tray is not
working.
1. Make sure that the server is turned on.
2. Insert the end of a straightened paper clip into the manual tray-release
opening.
3. Reseat the CD-RW/DVD drive.
4. Replace the CD-RW/DVD drive.
Chapter 3. Diagnostics
37