Updated: 5-14-21, EPYCS, DDR3/4, SAS3/NVME's SSDs

Jimster480

New Member
Mar 12, 2020
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Taking a look at these EPYC chips; would they work in an HPE DL325 G10?
I just picked up one of these servers with the 7402 but I could get my hands on another one with a much worse CPU for quite a bit less money and then upgrade the CPU if this was possible.
 

redeamon

Active Member
Jun 10, 2018
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Taking a look at these EPYC chips; would they work in an HPE DL325 G10?
I just picked up one of these servers with the 7402 but I could get my hands on another one with a much worse CPU for quite a bit less money and then upgrade the CPU if this was possible.
Sent PM. I don't see why it wouldn't work. Usually if a processor works out of the box on a retail m/b it'll work on another.
 

altano

Active Member
Sep 3, 2011
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Cambridge, MA
The retail 7742 has a base clock of 2.25 and a boost of 3.4, however, the QS has the same "all core" speed as retail: 2.25 ghz. Said another way, when all cores are loaded with prime95 the QS has the same speed as retail- 2.25ghz.
This was a little confusing. Does this mean they don't boost, so they only achieve speed parity when all cores are loaded?
 
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redeamon

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Jun 10, 2018
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This was a little confusing. Does this mean they don't boost, so they only achieve speed parity when all cores are loaded?
Ah thanks for this. I will fix that paragraph. But to answer your question- the QS boost up to 3.2 ghz but retail boost up to 3.4 ghz. All core speed is the same however.
 
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altano

Active Member
Sep 3, 2011
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Cambridge, MA
Man, I really want to build a monster machine around one of these CPUs but I don't have the power budget for it :(. What an insane price-to-performance ratio here.

Building a machine like this is going to be the first thing I do when I get solar panels :O
 

redeamon

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Jun 10, 2018
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Will put it up soon- had to get another h11 m/b since I made one of these 64 core systems a personal machine.
 

redeamon

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Jun 10, 2018
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Man, I really want to build a monster machine around one of these CPUs but I don't have the power budget for it :(. What an insane price-to-performance ratio here.

Building a machine like this is going to be the first thing I do when I get solar panels :O
Board doesn't have enough wattage? or too expensive to run?
 

redeamon

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Jun 10, 2018
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I hear you, it's about 17c kw/h which is rather ridicilous but hey it's CA.

With a h11, 3 nvme drives (high performance u.2), 6x fans and a ti-1080ti I get about 95w off the wall idle.
 
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IamSpartacus

Well-Known Member
Mar 14, 2016
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My server idles at 165w and that's with the following:
  • ASRock Rack EPYCD8 motherboard
  • EPYC 7452 (set to a cTDP of 180w)
  • 8 x DDR4-3200 RDIMMs
  • 2 x NVMe M.2 drives
  • 2 x NVMe U.2 drives
  • 3 x GPUs (GTX 1660, GTX 1060, Quadro K4000)
  • LSI 9200-16e
 

Kneelbeforezod

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Sep 4, 2015
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Do you have any boards you'd recommend for the 64 CPUs that have PCEI4.0? I can't seem to find any that are actually available for sale. I'd love to build a new WS around a 64 Core epyc - not that I need that many cores but....
 

redeamon

Active Member
Jun 10, 2018
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Do you have any boards you'd recommend for the 64 CPUs that have PCEI4.0? I can't seem to find any that are actually available for sale. I'd love to build a new WS around a 64 Core epyc - not that I need that many cores but....
I'm not 100%, but I haven't seen anything that's widely available, in atx and gen 4. Even on the Gen 3 side there's only a handful of ATX style rome boards.

MZ32-AR0 (rev. 1.0) | Server Motherboard - GIGABYTE U.S.A.

Comes to mind, but it's E-ATX which may work for you if you source the right case.

The 7742 is a monster. I kept one of the 64c QS for myself and built a pretty cool workstation. I'll post pictures soon. I use it for video rendering / encoding and it's unbelievable compared to my 9900k. (Not exactly a fair comparison but what the heck)
 
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