IBM 9228 Service Guide - Page 130

Memory problems, Microprocessor problems, Monitor or video problems

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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, Type 9228 and 9232," on page 19 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 Action The amount of system memory displayed is less than the amount of installed physical memory. 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 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, Type 9228 and 9232," on page 19 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 Action The computer emits a 1. (Trained service technician only) Reseat the microprocessor. continuous beep during POST, indicating that the startup (boot) microprocessor is not working 2. (Trained service technician only) Remove microprocessor 2 and restart the computer. correctly. v If no beep code occurs, microprocessor 2 might have failed. Replace the microprocessor. v If the beep code remains, remove microprocessor 1; then, restart the computer. If no beep code occurs, microprocessor 1 might have failed. Replace the microprocessor. 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. 112 IBM IntelliStation Z Pro Type 9228 and 9232: Problem Determination and Service Guide

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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, Type 9228 and 9232,” on page 19 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
Action
The amount of system memory
displayed is less than the
amount of installed physical
memory.
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
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, Type 9228 and 9232,” on page 19 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
Action
The computer emits a
continuous beep during POST,
indicating that the startup (boot)
microprocessor is not working
correctly.
1.
(Trained service technician only) Reseat the microprocessor.
2.
(Trained service technician only) Remove microprocessor 2 and restart the
computer.
v
If no beep code occurs, microprocessor 2 might have failed. Replace the
microprocessor.
v
If the beep code remains, remove microprocessor 1; then, restart the
computer. If no beep code occurs, microprocessor 1 might have failed.
Replace the microprocessor.
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.
112
IBM IntelliStation Z Pro Type 9228 and 9232: Problem Determination and Service Guide