Lenovo ThinkServer RD120 Hardware Maintenance Manual page 144

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 Easy LED Diagnostics that indicate
a microprocessor error, the error might be in the microprocessor or in the
microprocessor socket. See "Microprocessor problems" on page 152 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, ThinkServer RD120 Machine Types 6444, 6445, 6446, and 6447," 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
1-1-2
1-1-3
1-1-4
126
ThinkServer RD120 server Machine Types 6444, 6445, 6446, and 6447: Hardware Maintenance Manual
Description
Microprocessor register test failed.
CMOS write/read test failed.
BIOS EEPROM checksum failed.
Action
1. Reseat the following components, one at a
time, in the order shown, restarting the
server each time:
v (Trained service technician only)
Microprocessor 2 (if installed)
v (Trained service technician only)
Microprocessor 1
2. Replace the following components, one at
a time, in the order shown, restarting the
server each time:
v (Trained service technician only)
Microprocessor 2 (if installed)
v (Trained service technician only)
Microprocessor 1
v (Trained service technician only) System
board
1. Reseat the battery.
2. Clear CMOS memory. See "System-board
switches and jumpers" on page 13 for
information about how to clear CMOS
memory.
3. Replace the following components one at
a time, in the order shown, restarting the
server each time:
a. Battery
b. (Trained service technician only)
System board
1. Recover the BIOS code (see "Recovering
the BIOS code" on page 181).
2. (Trained service technician only) Replace
the system board.