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207-Memory initialization error on Processor 2. Dimm 3

Occasional Visitor

207-Memory initialization error on Processor 2. Dimm 3


I have a Proliant ML150 Gen9 server which came out stock with a single processor.  After about 2 years I decided to add another processor as the board could take it.  I added the exact same spec server, same RAM everything identical to the original processor. Everything has been working fine for about 4 months and now suddently when the server reboots i get the following error message:

207-Memory initialization error on Processor 2, Dimm 3.
The operting system may not have access to all the memory installed in the system

The server is currently running extremely slow and the 2nd processor is working twice as hard as the first.

Any ideas?

Acclaimed Contributor

Re: 207-Memory initialization error on Processor 2. Dimm 3

It could simply be a bad DIMM, but also the system board or the CPU could be the reason for this issue.

I would first swap this DIMM with another identical DIMM in the system and check what error will get reported (stay the issue with DIMM or slot?).

Hope this helps!

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Frequent Advisor

Re: 207-Memory initialization error on Processor 2. Dimm 3

What BIOS version do you have? Check here for revision history and fixes for ML150 G9:


And look for "207 - Memory Initialization Error"