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WispTheHusky

Looking for dual 8-pin EPS PSU recommendations

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Posted · Original PosterOP

Hey guys,


Been running some servers on my daily-driver PC for a while now, and after my work colleague gifted me a Supermicro X9DAi dual-socket server board, case, and old CPU, I thought it was about time I bit the bullet and build a dedicated home server.

 

The issue is - I'm in need of a PSU with dual 8-pin EPS (CPU) connectors, and I'm not practically able to find any below ~750W or so (understandable, as you'd only usually need dual EPS if you're pulling a lot of power). The thing is, the build I'm going for will have a fairly low power draw. (2x 115W TDP CPUs, and a very basic GPU, used if I never need to troubleshoot anything / access the BIOS - it'll be managed via Teamviewer mainly). I don't think I'll really need anything above 350 / 400W. Are y'all aware of any budget dual EPS PSUs? I'm not looking to break the bank, so I'm not after anything fancy (non-modular is a-okay).

 

The case fits regular sized PSUs. The only connectors I'll really need will be a couple of SATAs for the drives, 1x 6-pin PCIe for the GPU, a 24-pin MoBo and of course the 2x 8-pin EPS. No need for molex or loads of PCIe cables. Number of rails doesn't bother me too much, either. I'm just after something that works, instead of something fancy.

 

I'm based in the UK. Any assistance would be appreciated!

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3 minutes ago, WispTheHusky said:

Hey guys,


Been running some servers on my daily-driver PC for a while now, and after my work colleague gifted me a Supermicro X9DAi dual-socket server board, case, and old CPU, I thought it was about time I bit the bullet and build a dedicated home server.

 

The issue is - I'm in need of a PSU with dual 8-pin EPS (CPU) connectors, and I'm not practically able to find any below ~750W or so (understandable, as you'd only usually need dual EPS if you're pulling a lot of power). The thing is, the build I'm going for will have a fairly low power draw. (2x 115W TDP CPUs, and a very basic GPU, used if I never need to troubleshoot anything / access the BIOS - it'll be managed via Teamviewer mainly). I don't think I'll really need anything above 350 / 400W. Are y'all aware of any budget dual EPS PSUs? I'm not looking to break the bank, so I'm not after anything fancy (non-modular is a-okay).

 

The case fits regular sized PSUs. The only connectors I'll really need will be a couple of SATAs for the drives, 1x 6-pin PCIe for the GPU, a 24-pin MoBo and of course the 2x 8-pin EPS. No need for molex or loads of PCIe cables. Number of rails doesn't bother me too much, either. I'm just after something that works, instead of something fancy.

 

I'm based in the UK. Any assistance would be appreciated!

You could get away with a PSU that has 2x 4-pin EPS, so long as you are running 115ish W CPU's.


Main: AMD Ryzen 7 1700X, Nvidia GTX 780, 16 GB 3000 MT/s DDR4 Fedora 32 x86_64

Secondary: Intel Xeon X5670, Nvidia GTX 660, 24 GB 1333 MT/s DDR3 Windows 10 Home x86_64

Server: Intel Xeon X5670, 60 GB 1333 MT/s DDR3-R Ubuntu Server 20.04.1 LTS x86_64

Laptop: Intel Core i5-3320M, 16 GB 1600 MT/s DDR3 Fedora 32 x86_64

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Posted · Original PosterOP
1 minute ago, svmlegacy said:

You could get away with a PSU that has 2x 4-pin EPS, so long as you are running 115ish W CPU's.

Thanks for the reply. I was indeed thinking this. I know the max wattage rating for a 4 pin EPS is 155W, so even with some basic OC, it shouldn't exceed this (and I doubt both CPUs would ever be at 100% load), but the MoBo manual / manufacturer is very insistent on not doing this, and using 2 full 8-pin EPS connectors, even with a single CPU installed [source]. I guess that is to be expected - I just want to make sure it wouldn't totally fail to boot using a 4-pin instead of 8-pin for EPS. But I think 2x 4-pin EPS would be a good shout. Thanks.

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3 minutes ago, WispTheHusky said:

Thanks for the reply. I was indeed thinking this. I know the max wattage rating for a 4 pin EPS is 155W, so even with some basic OC, it shouldn't exceed this (and I doubt both CPUs would ever be at 100% load), but the MoBo manual / manufacturer is very insistent on not doing this, and using 2 full 8-pin EPS connectors, even with a single CPU installed [source]. I guess that is to be expected - I just want to make sure it wouldn't totally fail to boot using a 4-pin instead of 8-pin for EPS. But I think 2x 4-pin EPS would be a good shout. Thanks.

Keep in mind default PL2 for most Intel CPU's with TBT is 1.25 TDP, so 144 W peak (for > 10ms). It will boot up, though.


Main: AMD Ryzen 7 1700X, Nvidia GTX 780, 16 GB 3000 MT/s DDR4 Fedora 32 x86_64

Secondary: Intel Xeon X5670, Nvidia GTX 660, 24 GB 1333 MT/s DDR3 Windows 10 Home x86_64

Server: Intel Xeon X5670, 60 GB 1333 MT/s DDR3-R Ubuntu Server 20.04.1 LTS x86_64

Laptop: Intel Core i5-3320M, 16 GB 1600 MT/s DDR3 Fedora 32 x86_64

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Posted · Original PosterOP
14 hours ago, svmlegacy said:

Keep in mind default PL2 for most Intel CPU's with TBT is 1.25 TDP, so 144 W peak (for > 10ms). It will boot up, though.

Oh yes, of course. I'll avoid the OC to be safe. Although I doubt it'll ever reach 150W, best to be safe, and have the little bit of extra headroom.

So - the question is a little different now... Any recommended 2x4 or 2x8 pin ESP PSUs? ;) Cheers!

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2 hours ago, WispTheHusky said:

Oh yes, of course. I'll avoid the OC to be safe. Although I doubt it'll ever reach 150W, best to be safe, and have the little bit of extra headroom.

So - the question is a little different now... Any recommended 2x4 or 2x8 pin ESP PSUs? ;) Cheers!

My Seasonic Focus PX-650 came with 1x 8-pin and 1x 4-pin, though that's probably more expensive than you want to spend. My older OCZ ModXtreme Pro 600 also had 1x 8 and 1x 4.


Main: AMD Ryzen 7 1700X, Nvidia GTX 780, 16 GB 3000 MT/s DDR4 Fedora 32 x86_64

Secondary: Intel Xeon X5670, Nvidia GTX 660, 24 GB 1333 MT/s DDR3 Windows 10 Home x86_64

Server: Intel Xeon X5670, 60 GB 1333 MT/s DDR3-R Ubuntu Server 20.04.1 LTS x86_64

Laptop: Intel Core i5-3320M, 16 GB 1600 MT/s DDR3 Fedora 32 x86_64

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