Solving Memory Problems - HP Pro 3420 Maintenance & Service Manual

System setup utility reports unprogrammed EEPROM.
Cause
Unprogrammed EEPROM.

Solving Memory Problems

If you encounter memory problems, some common causes and solutions are listed in the following
table.
CAUTION:
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 A-13 Solving Memory Problems
System will not boot or does not function properly after installing additional memory modules.
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.
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.
Power may still be supplied to the DIMMs when the computer is turned off (depending
Solution
Contact an authorized service provider.
Solution
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.
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.
Solving Memory Problems 103