HP DL120 - ProLiant - G5 Troubleshooting Guide download pdf (Page 49)

Hardware problems 49

If you are unsure which DIMM has failed, test each bank of DIMMs by removing all other DIMMs.

Then, isolate the failed DIMM by switching each DIMM in a bank with a known working DIMM.

o Remove any third-party memory.

• To test the memory, run HP Insight Diagnostics (on page 75).

Server is out of memory

Action:

1. Be sure the memory is configured properly. Refer to the application documentation to determine the

memory configuration requirements.

2. Be sure no operating system errors are indicated.

3. Be sure a memory count error ("Memory count error exists" on page 49) did not occur. Refer to the

message displaying memory count during POST.

Memory count error exists

Possible Cause: The memory modules are not installed correctly.

Action:

1. Be sure the memory modules are supported by the server. See the server documentation.

2. Be sure the memory modules have been installed correctly in a supported configuration. See the server

documentation.

3. Be sure the memory modules are seated properly ("DIMM handling guidelines" on page 19).

4. Be sure no operating system errors are indicated.

5. Restart the server and check to see if the error message is still displayed.

6. Run HP Insight Diagnostics (on page 75). Then, replace failed components as indicated.

Server fails to recognize existing memory

Action:

1. Reseat the memory. Use care when handling DIMMs ("DIMM handling guidelines" on page 19).

2. Be sure the memory is configured properly. See the server documentation.

3. Be sure a memory count error did not occur ("Memory count error exists" on page 49). See the message

displaying memory count during POST.

Server fails to recognize new memory

Action:

1. Be sure the memory is the correct type for the server and is installed according to the server

requirements. See the server documentation or HP website (http://www.hp.com).

2. Be sure you have not exceeded the memory limits of the server or operating system. See the server

documentation.

3. Be sure no Event List error messages are displayed in the IML ("Integrated Management Log" on page

76).

4. Be sure the memory is seated properly ("DIMM handling guidelines" on page 19).

5. Be sure no conflicts are occurring with existing memory. Run the server setup utility.

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HP DL120 - ProLiant - G5 Troubleshooting Guide Page 49