Solving Memory Problems - Compaq 100eu - All-in-One PC Maintenance & Service Manual

Solving Memory Problems

If you encounter memory problems, some common causes and solutions are listed in the following
table.
CAUTION:
damage to the DIMMs or the system board, you must unplug the computer power cord before
attempting to reseat, install, or remove a DIMM module.
For those systems that support ECC memory, HP does not support mixing ECC and non-ECC
memory. Otherwise, the computer will not boot the operating system.
System will not boot or does not function properly after installing additional memory modules.
Cause
A memory module is not seated properly in the socket.
Memory module is not the correct type or speed grade for
the system or the new memory module is not seated
properly.
Out of memory error.
Cause
Memory configuration may not be set up correctly.
You have run out of memory to run the application.
Memory count during POST is wrong.
Cause
The memory modules may not be installed correctly.
Integrated graphics may use system memory.
Insufficient memory error during operation.
Cause
Too many Terminate and Stay Resident programs (TSRs)
are installed.
You have run out of memory for the application.
174 Chapter 11 Troubleshooting Without Diagnostics
Power may still be supplied to the DIMMs when the computer is turned off. To avoid
Solution
Reseat the memory module. Ensure that the locks on each
side of the module are in the closed position.
Replace module with the correct industry-standard device for
the computer. On some models, ECC and non-ECC memory
modules cannot be mixed.
Solution
Use the Device Manager to check memory configuration.
Check the application documentation to determine the
memory requirements.
Solution
Check that the memory modules have been installed
correctly and that proper modules are used.
No action required.
Solution
Delete any TSRs that you do not need.
Check the memory requirements for the application or add
more memory to the computer.