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Which linear atx PSU ?


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  • 1 year later...

You can get one of these DC to DC ATX converters - https://hdplex.com/hdplex-800w-dc-atx-with-16v-63vdc-input.html (or their 400W version) - and get a 19V SR7 to power it. 

Additionally, you can get a 12V SR7 to power the CPU (EPS connector on your motherboard) separately. That would be another improvement and you can do it in the future rather than all in one step. 

The 800W DC to DC ATX is pretty good, and especially if you have a dedicated rail for the EPS, the end result is pretty good. That would be my recommendation. 

Alternatively, you can get a 4 rail linear power supply and eliminate the HDPlex DC to DC ATX, but that's a bigger hassle, because the linear power supply would not follow the ATX standard and you have to do some hacks. 

Industry disclosure:
https://chicagohifi.com

Dealer for: Taiko Audio, Conrad Johnson, Audio Mirror, and Sean Jacobs

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  • 3 weeks later...
On 9/29/2020 at 2:13 PM, ingemar said:

What kind of amperege do i need to get a Xeon E3-1245 v3 going?I'm curios to try a separete psu for the cpu.

 

Typically, something like 12V - 10A would power 95W TDP CPUs okay. 

 

 

3 hours ago, Niko said:

This let me wonder how do you guys with top systems power them up. Isn't using ATX LPSU the best option ?

So far it is, until someone comes up with new technology. A typical server with PCIe USB card and PCIe NIC card would need 6 rails:

ATX - 3 rail

EPS - 1 rail

PCIe USB - 1 rail

PCIe NIC - 1 rail

 

I good compromise is to use separate rails for EPS, PCIe USB, and PCIe NIC and combine the 3 x ATX rails into a single rail that's further split by the HDPlex 800W DC to DC ATX. In that case you would need 4 rails:

ATX - 1 rail --> HDPlex --> 3 x ATX rails

EPS - 1 rail

PCIe USB - 1 rail

PCIe NIC - 1 rail

 

Another reason why this is a good compromise is that you end up having an ATX controller to work with your motherboard. If you just use a Paul Hynes or Sean Jacobs LPS you don't get the ATX part. 

Industry disclosure:
https://chicagohifi.com

Dealer for: Taiko Audio, Conrad Johnson, Audio Mirror, and Sean Jacobs

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