9 Legend

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16.3K Posts

January 21st, 2014 19:00

You will always get an error installing only one 16GB DIMM.  Do you have one or two processors installed?

6 Posts

January 22nd, 2014 00:00

Two processors..

I think to understand which is the problem....and if I move 4 x 4 gb to slot of first pocessor and the new 16 gb to second one?

4 Operator

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9.3K Posts

January 22nd, 2014 08:00

The main rules for memory installation on servers using (modern) Xeon processors:

- each memory channel needs to be populated the exact same way, unless a memory channel is not used at all

- when using multiple processors, all processors need to have the exact same memory population

So, you will need to buy at least 1 more 16GB dimm. Then you could do this:

CPU 1: Memory channel 1, slot 1: 16GB, slot 2: 4GB, slot 3: 4GB

CPU 2: Memory channel 1, slot 1: 16GB, slot 2: 4GB, slot 3: 4GB

To upgrade to more in the future after this, you'll have to either remove memory or buy at least 2 x 16GB + 4 x 4GB each time.

9 Legend

 • 

16.3K Posts

January 22nd, 2014 08:00

"I think to understand which is the problem....and if I move 4 x 4 gb to slot of first pocessor and the new 16 gb to second one?"

No, each processor must be populated with the same configuration.  So, you CAN'T use a single 16GB DIMM in this server with two processors ... each processor would have to have a 16GB DIMM.

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