Does ECC DDR4 work in Haswell-E motherboards

fivemack · 2015-12-21, 19:41

I know it won't work with ECC; but does it work as memory?

At the moment I have a XeonD 1540 with 2x16G ECC DDR4. An i7-5820K would probably be a more sensible machine for my use case, since I have plenty of electricity, am embarrassingly parallel, and 8*2.1 < 6*3.3. I have a buyer for the X10SDV-F board, but he'd want to put 4x32G in it.

The question is whether I should be buying 2x16G ECC, or 4x8G non-ECC and putting the 2x16G ECC on eBay.

Mark Rose · 2015-12-21, 20:37

Some Haswell-E motherboards do support DDR4 ECC, such as the ASRock X99 WS. I'm not sure if that requires a Xeon to use though.

lavalamp · 2015-12-22, 04:51

I don't know about ECC support on desktop platforms. However, generally ECC RAM runs slower than non-ECC RAM, so if the work you're doing can be sped up with more memory bandwidth it might be worth it to get a highly clocked non-ECC kit and populate all 4 channels too.

2015-12-21, 19:41	#1
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 7·911 Posts	Does ECC DDR4 work in Haswell-E motherboards I know it won't work with ECC; but does it work as memory? At the moment I have a XeonD 1540 with 2x16G ECC DDR4. An i7-5820K would probably be a more sensible machine for my use case, since I have plenty of electricity, am embarrassingly parallel, and 82.1 < 63.3. I have a buyer for the X10SDV-F board, but he'd want to put 4x32G in it. The question is whether I should be buying 2x16G ECC, or 4x8G non-ECC and putting the 2x16G ECC on eBay.

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2015-12-21, 20:37	#2
Mark Rose "/X\(‘-‘)/X\" Jan 2013 2⁴×3×61 Posts	Some Haswell-E motherboards do support DDR4 ECC, such as the ASRock X99 WS. I'm not sure if that requires a Xeon to use though.

2015-12-22, 04:51	#3
lavalamp Oct 2007 Manchester, UK 2·3·223 Posts	I don't know about ECC support on desktop platforms. However, generally ECC RAM runs slower than non-ECC RAM, so if the work you're doing can be sped up with more memory bandwidth it might be worth it to get a highly clocked non-ECC kit and populate all 4 channels too.