IBM 8853L6U Service Manual page 69

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, Types 1885 and 8853," on page 15 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
1-1-4
1-2-1
1-2-2
1-2-3
1-2-4
1-3-1
Description
BIOS ROM checksum failed.
Programmable interval timer failed.
DMA initialization failed.
DMA page register write/read failed.
RAM refresh verification failed.
First 64K RAM test failed.
Action
1. Update the BIOS code.
2. Reseat the DIMMs.
3. Replace the following components one at a
time, in the order shown, restarting the
blade server each time:
a. DIMMs
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.
1. Reseat the DIMMs and the Memory and I/O
Expansion Blade if installed.
2. Replace the following components one at a
time, in the order shown, restarting the
blade server each time:
a. DIMMs
b. (Trained service technician only) System
board assembly
c. Memory and I/O Expansion Blade (if
one is installed)
1. Reseat the DIMMs.
2. Replace the lowest-numbered pair of
DIMMs with an identical known good pair of
DIMMs; then, restart the server. If the beep
code remains, go to 3b. Return one DIMM
at a time from the failed pair to its
connector, restarting the server after each
DIMM, to identify the failed DIMM.
3. Replace the following components one at a
time, in the order shown, restarting the
blade server each time:
a. DIMMs
b. (Trained service technician only) System
board assembly
Chapter 5. Diagnostics
53