R410-Maximum Ram Upgrade with Quadrank DIMM

Question

Hello there, I was searching the forums and couldn't find anything regarding quad rank ram cards and maximum ram.

I have 4 PE-R410s (2 CPUs each) with 32GB of ram which is 4 x 8GB 1333MHZ Quad-Rank registered DIMMs.

Now time has come that we need to max it out with the same 8GB sticks to a total of 64GB. My question is, is it possible to populate all the slots with quad-rank sticks?

Regards

Sam

theflash1932 · Accepted Answer

Except for the speed, there should be no other restrictions (if not mixing with single/dual ranks):

For quad-rank memory modules:
• One memory module per channel supports up to 1067MHz.
• Two memory modules per channel are limited to 800 MHz, regardless of memory module speed.

Page 124 of the Hardware Owner's Manual:
http://www.dell.com/support/Manuals/us/en/19/product/poweredge-r410

Also, with BIOS version 1.1.5 (almost 4 years ago), support was added for 16GB DIMM's, raising the maximum memory for the R410 to 128GB. This specifies dual-rank, so it is unclear whether quad-rank 16GB DIMM's would also be supported, but the speed decreases likely still hold true.

http://ftp.dell.com/FOLDER00792842M/1/PER410-011100BIOS.txt
http://ftp.dell.com/Manuals/all-products/esuprt_ser_stor_net/esuprt_poweredge/poweredge-r410_User%27s%20Guide8_en-us.pdf
http://i.dell.com/sites/doccontent/shared-content/data-sheets/en/Documents/R410-SpecSheet.pdf

asm2sam · Answer

Thanks for pointing me in the right direction. Much appreciated for the quick response.

PowerEdge Hardware General

R410-Maximum Ram Upgrade with Quadrank DIMM

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