RAM upgrade on PowerEdge TT710

Question

I want to do a RAM upgrade on a PE T710. Currently I have 24 GB of RAM installed in optimizer mode,

there are 18 sockets total, 12 sockets x 2 GB of RAM,sockets A1 through A6 and B1 through B6 are populated, 2 physical chips in the motherboard.

I'd like to just add 4 sticks of 8GB of RAM and bring it up to a total of 56 GB of RAM but my problem is that the

documentation says that even though I can mix memory modules of different sizes, the configuration for all

channels has to be identical. Does this mean that I can't just add 8GB of RAM to sockets A7, A8, B7 and B8 ?

thanks

John

Daniel My · Accepted Answer

Hello John

Does this mean that I can't just add 8GB of RAM to sockets A7, A8, B7 and B8 ?

Yes, as long as all DIMMs are Registered/Buffered DIMMs you can populate it like that. It is preferred to put larger DIMMs before smaller DIMMs, so I would suggest putting the 8GB DIMMs in {1,2} and the 2GB in {4,5,6}, {7,8,9}.

Thanks

Dev Mgr · Answer

I would suggest putting the 8GB DIMMs in {1,2} and the 2GB in {4,5,6}, {7,8,9}.

This information isn't correct per Dell's online owner's manual for the T710 (and all Xeon 5500/5600 supported 11th generation PowerEdge servers).

Page 98 in the hardware owner's manual (http://support.dell.com/support/edocs/systems/peT710/en/index.htm) says that except for unpopulated memory channels, all memory channels must be populated identically.

So, when adding 4 8GB RDIMMs, you can use 2 memory channels per CPU with 1 x 8GB and 2 x 2GB (assuming your 2GB dimms are at most dual ranked (not quad ranked in other words).

So you would have:

Slot 1: 8GB

Slot 2: 8GB

Slot 3: empty

Slot 4: 2GB

Slot 5: 2GB

Slot 6: empty

Slot 7: 2GB

Slot 8: 2GB

Slot 9: empty

And then the same for the 2nd CPU's memory slots.

This does mean you would have 'only' 48GB in total.

PowerEdge Hardware General

RAM upgrade on PowerEdge TT710

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