IBM 7163, Problem Determination And Service Manual, Page: 90 / 210

Beep code descriptions
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 there are multiple error codes or light path diagnostics LEDs that
indicate a microprocessor error, the error might be in a microprocessor or in a
microprocessor/memory card connector. See “Microprocessor problems” on page
103 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 3, “Parts listing, System x3755 Type 8877 and 7163,” on page 25 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.
Beep code Description Action
1-1-3 CMOS write/read test failed.
1. Clear CMOS, see “I/O board jumpers” on page 9.
2. (Trained service technician only) Replace the I/O board,
see “Removing the I/O board assembly” on page 68 and
“Replacing the I/O board assembly” on page 69.
1-1-4 BIOS ROM checksum failed.
1. Restart the server using the backup BIOS page (see
“Recovering from a BIOS update failure” on page 138).
Flash the BIOS code, see “Recovering from a BIOS
update failure” on page 138.
2. (Trained service technician only) Replace the I/O board,
see “Removing the I/O board assembly” on page 68 and
“Replacing the I/O board assembly” on page 69.
1-2-1 Programmable interval timer failed. (Trained service technician only) Replace the I/O board, see
“Removing the I/O board assembly” on page 68 and
“Replacing the I/O board assembly” on page 69.
1-2-2 DMA initialization failed. (Trained service technician only) Replace the I/O board, see
“Removing the I/O board assembly” on page 68 and
“Replacing the I/O board assembly” on page 69.
1-2-3 DMA page register write/read failed. (Trained service technician only) Replace the I/O board, see
“Removing the I/O board assembly” on page 68 and
“Replacing the I/O board assembly” on page 69.
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IBM System x3755 Type 8877 and 7163: Problem Determination and Service Guide