Memory Problems; Microprocessor Problems; Monitor Or Video Problems - IBM IntelliStation M Pro 6218 Problem Determination And Service Manual

Memory 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," on page 65 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.
Symptom
The amount of system memory
displayed is less than the
amount of installed physical
memory.

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," on page 65 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.
Symptom
The computer emits a
continuous beep during POST,
indicating that the startup (boot)
microprocessor is not working
correctly.

Monitor or video problems

Some IBM monitors have their own self-tests. If you suspect a problem with your
monitor, see the documentation that comes with the monitor for instructions for
testing and adjusting the monitor.
Action
1. Make sure that:
v The memory modules are seated correctly.
v You have installed the correct type of memory.
v If you changed the memory, you updated the memory configuration in the
Configuration/Setup Utility program.
v All banks of memory are enabled. The computer might have automatically
disabled a memory bank when it detected a problem, or a memory bank
might have been manually disabled.
2. Check the POST error log for error message 289:
v If the DIMM was disabled by a system-management interrupt (SMI), replace
the DIMM.
v If the DIMM was disabled by the user or by POST, run the
Configuration/Setup Utility program and enable the DIMM. Save the settings
and restart the computer.
3. Replace the following components one at a time, in the order shown, restarting
the computer each time:
a. DIMM
b. (Trained service technician only) System board
Action
1. (Trained service technician only) Reseat the microprocessor.
2. (Trained service technician only) Replace the microprocessor.
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Chapter 2. Diagnostics