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CAUTION: Power may still be supplied to the DIMMs when the computer is turned off (depending
on the Management Engine (ME) settings). To avoid 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.
NOTE: The memory count will be affected by configurations with the Management Engine (ME)
enabled. The ME uses 8MB of system memory in single channel mode or 16MB of memory in dual-
channel mode to download, decompress, and execute the ME firmware for Out-of-Band (OOB), third-
party data storage, and other management functions.
Table 10-13 Solving Memory Problems
System will not boot or does not function properly after installing additional memory modules.
Cause Solution
A memory module is not installed in the DIMM1 or XMM1
socket.
Ensure that a memory module is installed in the DIMM1 or
XMM1 socket on the system board. This socket must be
populated with a memory module.
Memory module is not the correct type or speed grade for
the system or the new memory module is not seated
properly.
Replace module with the correct industry-standard device for
the computer. On some models, ECC and non-ECC memory
modules cannot be mixed.
Out of memory error.
Cause Solution
Memory configuration may not be set up correctly. Use the Device Manager to check memory configuration.
You have run out of memory to run the application. Check the application documentation to determine the
memory requirements.
Memory count during POST is wrong.
Cause Solution
The memory modules may not be installed correctly. Check that the memory modules have been installed
correctly and that proper modules are used.
Integrated graphics may use system memory. No action required.
Insufficient memory error during operation.
Cause Solution
Too many Terminate and Stay Resident programs (TSRs)
are installed.
Delete any TSRs that you do not need.
You have run out of memory for the application. Check the memory requirements for the application or add
more memory to the computer.
Solving Memory Problems 281