Solving Memory Problems; System Will Not Boot Or Does Not Function Properly After Installing Additional Memory Modules; Out Of Memory Error; Memory Count During Post Is Wrong - HP ProDesk 400 G7 SFF Maintenance And Service Manual

Solving memory problems

If you encounter memory problems, some common causes and solutions are listed in these tables.
IMPORTANT:
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 memory 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 8 MB of system memory in single-channel mode or 16 MB 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.
System will not boot or does not function properly after installing additional memory
modules
Use this information to troubleshoot the computer.
Cause
A memory module is not installed in the DIMM1 or XMM1 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

Use this information to troubleshoot the computer.
Cause
You have run out of memory to run the application.

Memory count during POST is wrong

Use this information to troubleshoot the computer.
Cause
The memory modules might not be installed correctly.
Integrated graphics might use system memory.
ENWW
Power can still be supplied to the DIMMs when the computer is turned off (depending on the
Solution
Verify 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.
Replace module with the correct industry-standard device for the
computer. On some models, ECC and non-ECC memory modules
cannot be mixed.
Solution
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.
Solving memory problems 69