IBM BladeCenter HC10 Type 7996, Service Manual

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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 7996,” on page 11 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 Description Action
1-2-3 DMA page register write/read failed. (Trained service technician only) Replace the
system board assembly.
1-2-4 RAM refresh verification failed.
1. Reseat the DIMMs (see “Removing a
memory module” on page 24 and “Installing
a memory module” on page 24).
2. Replace the lowest-numbered pair of
DIMMs; then, restart the workstation. If the
beep code error 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 workstation each time:
a. DIMMs
b. (Trained service technician only) System
board assembly
1-3-1 First 64K RAM test failed.
1. Reseat the DIMMs (see “Removing a
memory module” on page 24 and “Installing
a memory module” on page 24).
2. Replace the lowest-numbered pair of
DIMMs; then, restart the workstation. If the
beep code error 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 workstation each time:
a. DIMMs
b. (Trained service technician only) System
board assembly
2-1-1 Primary DMA register test failed. (Trained service technician only) Replace the
system board assembly.
2-1-2 Secondary DMA register test failed. (Trained service technician only) Replace the
system board assembly.
2-1-3 Primary interrupt mask register test
failed.
(Trained service technician only) Replace the
system board assembly.
2-1-4 Secondary interrupt mask register test
failed.
(Trained service technician only) Replace the
system board assembly.
2-3-4 Search for video ROM failed.
1. Reseat the graphics card.
2. Replace the graphics card.
Chapter 5. Diagnostics
41