IBM BladeCenter HS20 7981 Problem Determination And Service Manual page 28

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 7981," 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.
Beep code
2-2-2
2-2-3
2-2-4
2-3-1
2-3-2
2-3-3
2-3-4
2-4-1
2-4-4
3-1-1
3-1-2
12
BladeCenter HS20 Type 7981: Problem Determination and Service Guide
Description
Keyboard controller failed.
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.
Unsupported memory configuration.
Timer tick interrupt failed.
Interval timer channel 2 failed.
Action
1. Reseat the keyboard.
2. Check the management-module
functionality (see the documentation for
your BladeCenter unit).
3. Replace the following components one at a
time, in the order shown, restarting the
blade server each time:
a. Keyboard
b. (Trained service technician only) System
board assembly
1. Reseat the battery.
2. Replace the following components one at a
time, in the order shown, restarting the
blade server each time:
a. Battery
b. (Trained service technician only) System
board assembly
1. Reseat the battery.
2. Replace the following components one at a
time, in the order shown, restarting the
blade server each time:
a. Battery
b. (Trained service technician only) System
board assembly
(Trained service technician only) Replace the
system board assembly.
(Trained service technician only) Replace the
system board assembly.
(Trained service technician only) Replace the
system board assembly.
(Trained service technician only) Replace the
system board assembly.
(Trained service technician only) Replace the
system board assembly.
1. Check the DIMM error LEDs on the blade
server.
2. Replace noncompatible or failing DIMMs in
the blade server.
(Trained service technician only) Replace the
system board assembly.
(Trained service technician only) Replace the
system board assembly.