Reference Dell R710 - Configuration of memory

Hi all

I'm sure I'm missing something, but I read the two technical papers about memory configuration in the Dell R710.

I have a server that currently has 48GB stated as follows

A1 - 4 GB

A4 - 4 GB

A2 - 4 GB

A5 - 4 GB

A3 - 4 GB

A6 - 4 GB

(It then returned on the b-side)

According to the BIOS it's set to "optimized."

Now I have sticks of 2x16GB I wanted to install, the only way that I could operate without the whine of BIOS was to install as follows:

A2 - 16 GB

A5 - 4 GB

A8 - 4 GB

(Duplicated on b-side)

Giving 72 GB.

As I read the manual, I should be able to mix the sizes of memory for "optimized" as long I have spend from A1 to A9 and so I have an another 6x4Go sticks left, I want to install.

My logic is that I can fill with A1 to A9, mixing the 16 GB, however when I try I get the error on the A1/A2/A3 needing to be the same?

Am I missing something simple? I am unable to make changes in the BIOS, the memory is all of the same type (bought from Dell)

Rob_991,

The question that you are running in is due to the R710 need 3 memory channels to match.  Each game nine media is organized in three channels with three supports memory per channel. As shown below, each processor has 3 channels of memory, allowing only a single channel to the need to match, or filled.  So, with only having a couple of 16 GB DIMMs, you are only able to fill a channel on each side. What I would say is the addition of a couple more 16 GB DIMMS fill A1, A2, B1, B2 with them, and then place the 4 GB in A4, A5, A7, A8, as well as B4, B5, B7 and B8. This gives you two channels on each side, as well as 96 GB of memory.

Let me know if this helps answer your question.

Tags: Dell Servers

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