HP EliteDesk 705 G4 Small Form Factor PC User Manual download pdf (Page 102)

Solving memory problems

If you encounter memory problems, some common causes and solutions are listed in the following table.

CAUTION: Power may still be supplied to the DIMMs when the computer is turned o (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 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 aected by congurations 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 rmware 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.

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

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.

Insucient 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.

92 Chapter 6 Troubleshooting without diagnostics

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HP EliteDesk 705 G4 Small Form Factor PC User Manual Page 102