IBM LS20 - BladeCenter - 8850 Service Manual page 30

No-beep symptoms
The following table describes situations in which no beep code sounds when POST
is completed.
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 3, "Parts listing, Type 8850," on page 53 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.
No-beep symptom
No beep and the system
operates correctly
No beep and no video
(System error LED is
OFF)
No beep and no video
(System Attention LED is
ON)
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AMD Opteron LS20 Type 8850 for IBM BladeCenter: Problem Determination and Service Guide
Description Action
(Trained service technician only) Replace the
system board assembly.
See "Solving undetermined problems" on page
50.
See "Light path diagnostics" on page 40.