IBM 7378, Problem Determination And Service Manual, Page: 94 / 362

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 x3400 M3 Types 7378 and 7379,” on page 141 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 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 DVD drive.
4. Replace the DVD drive.
General 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 x3400 M3 Types 7378 and 7379,” on page 141 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
A cover lock is broken, an LED
is not working, or a similar
problem has occurred. If the part is a CRU, replace it. If the part is a FRU, the part must be replaced by a
trained service technician.
The server is hung while the
screen is on. Cannot start the
Setup utility by pressing F1.
1. See “Nx boot failure” on page 136 for more information.
2. See “Recovering the server firmware” on page 134 for more information.
Hard disk 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 x3400 M3 Types 7378 and 7379,” on page 141 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
Not all drives are recognized by
the hard disk drive diagnostic
tests. Remove the drive that is indicated by the diagnostic tests; then, run the hard disk
drive diagnostic tests again. If the remaining drives are recognized, replace the
drive that you removed with a new one.
The server stops responding
during the hard disk drive
diagnostic test. Remove the hard disk drive that was being tested when the server stopped
responding, and run the diagnostic test again. If the hard disk drive diagnostic test
runs successfully, replace the drive that you removed with a new one.
A hard disk drive was not
detected while the operating
system was being started. Reseat all hard disk drives and cables; then, run the hard disk drive diagnostic
tests again.
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IBM System x3400 M3 Types 7378 and 7379: Problem Determination and Service Guide