IBM BladeCenter HS12 Type 1916, Service Manual

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A beep code is a combination of short or long beeps or a series of short beeps that
are separated by pauses. For example, a “1-2-3” beep code is one short beep, a
pause, two short beeps, a pause, and three short beeps. A beep code other than one
beep indicates that POST has detected a problem. To determine the meaning of a
beep code, see “Beep code descriptions.” If no beep code sounds, see “No-beep
symptoms” on page 75.
Beep code descriptions
Use this information to determine beep codes and how to resolve the error.
The following table describes the beep codes and suggested actions to correct the
detected problems.
A single problem might cause more than one error message. When this occurs,
correct the cause of the first error message. The other error messages usually will
not occur the next time POST runs.
Exception: If multiple error codes or light path diagnostics LEDs indicate a
microprocessor error, the error might be in a microprocessor or in a microprocessor
socket. See “Microprocessor problems” on page 117 for information about
diagnosing microprocessor 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, Types 8014, 8028 and 1916,” on page 25 to determine which components are CRUs
and which components are FRUs.
v
If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Beep code Description Action
1-1-2 Microprocessor register test failed.
1. (Trained service technician only) Reseat the
microprocessor. See “Removing a
microprocessor and heat sink” on page 60
and “Installing a microprocessor and heat
sink” on page 62.
2. Replace the following components one at a
time, in the order shown, restarting the
blade server each time:
a. (Trained service technician only)
Microprocessor - See “Removing a
microprocessor and heat sink” on page
60 and “Installing a microprocessor and
heat sink” on page 62.
b.
(Trained service technician only)
System-board assembly - See “Removing
the system-board assembly” on page 65
and “Installing the system-board
assembly” on page 66.
Chapter 6. Diagnostics
69