Lenovo ThinkServer RD120 Hardware Maintenance Manual page 146

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
2-2-3
2-2-4
2-3-1
2-3-2
2-3-3
2-3-4
2-4-1
3-1-1
3-1-2
3-1-3
128
ThinkServer RD120 server Machine Types 6444, 6445, 6446, and 6447: Hardware Maintenance Manual
Description
CMOS power failure and checksum
checks failed.
CMOS configuration information validation
failed.
Screen initialization failed.
Screen memory failed.
Screen retrace failed.
Search for video ROM failed.
Video failed; screen believed operable.
Timer tick interrupt failed.
Interval timer channel 2 failed.
RAM test failed above address OFFFFH
Action
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. 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
(Trained service technician only) Replace the
system board.
(Trained service technician only) Replace the
system board.
(Trained service technician only) Replace the
system board.
(Trained service technician only) Replace the
system board.
(Trained service technician only) Replace the
system board.
(Trained service technician only) Replace the
system board.
(Trained service technician only) Replace the
system board.
1. Reseat the battery.
2. 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