Non-ECC DDR4 2133MHz @ 1.35v on a Xeon E5 2697 v3?

cornbreadman_ · Sep 1, 2016

Hi there! In October, I'm going to build a X99 machine with a Xeon E5 2697 v3 CPU with Non-ecc memory. I know that E5 v3 Xeons only supports memory speeds of 2133MHz, but what I don't know is if the DRAM voltage on Xeons is limited to 1.2v or would I be able to run 2133 XMP memory with 1.35v without damaging the chip in any way?

Tradesman1 · Sep 1, 2016

Most all DDR4 2133 DRAM is 1.2 so you shouldn't need to worry about 1.35

cornbreadman_ · Sep 1, 2016

Tradesman1 :

I do understand that most memory is 1.2v. But because of the strict speeds that Xeons have, I would like to purchase this kit for the low latency http://www.newegg.com/Product/Product.aspx?Item=N82E16820236008
The thing is that I don't know if the IMC can handle 1.35v since it's a Xeon and not an i7

Tradesman1 · Sep 1, 2016

Might look at 2400/12 and drop and run them at 2133/11 at 1.2 or probably 2133/10 at 1.25 which should be perfectly fine - to be honest with an Xeon would be leery of 1.35

cornbreadman_ · Sep 2, 2016

Tradesman1 :

Me personally, I'd prefer to buy ram that's already preset with the advertised timing out of the box!
I would think that 1.45 wouldn't be a problem on a Haswell Xeon, but since it's locked to 2133MHz, IDK if the DRAM voltage is locked down too?! and not even Intel could answer my question. :'(

Tradesman1 · Sep 2, 2016

2133 is the default, though oft times the BIOS will set to looser timings. Your call though I wouldn't run DRAM at 1.45 - there's no need unless thinking LN2

cornbreadman_ · Sep 3, 2016

Tradesman1 :

Opps! I meant to say 1.35v

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