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I have a H8QGL-IF+ server motherboard. And for it i need three 8 pin EPS connectors for CPU since this mobo has 4 cpus support. I bough 1000w PSU from he quiet ( DARK POWER 1000W P8 ) and it has only 1 slot to plug in EPS cable. Which adapters can i use or how can i get three 8 PIN EPS cables from this PSU? Also it has some odd 12 pin PCIE connectors, can i use those?

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  • Considering the investment here (server motherboard, potentially 4 x CPU, potentially lots of RAM) I am surprised you're willing to use a consumer-grade (and incompatible at that) PSU.
    – misha256
    Commented Feb 24, 2016 at 1:01
  • I searched the forums and everything and nobody using quad opteron motherboards didnt use any supermicro PSU. They all used AX1200, this bequiet or other PSU with adapters if needed.
    – Mark
    Commented Feb 24, 2016 at 8:40
  • Fair enough, in the end as long as the power is good you'll be good. Have fun!
    – misha256
    Commented Feb 25, 2016 at 2:23

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From the motherboard manual:

The H8QGL-6/iF+ serverboard requires the use of proprietary power supplies.

You are trying to use an standard ATX PSU with a server board that requires a proprietary power supply (ATX + 3x 12v AUX). So the "official" way to deal with this is get a properly-compatible PSU from SuperMicro.

If you want to hack it in, here's the pinout for the 12V connectors, which I believe will be the same as your single "P8" connector:

AUX Poinout

If so, you'll need to either bust out the soldering iron and parallel 2 more of these off the existing one (and hope the P8 rail can handle it), or find a couple 12V Molex -> P8 adapters such as this one:

Molex To P8

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  • Can you point me to a supermicro PSU?
    – Mark
    Commented Feb 23, 2016 at 21:40
  • You'll have to talk with a local SuperMicro reseller, or SuperMicro directly (who can point you to local a reseller). My guess is though, that you can't just buy a compatible PSU, as they probably (only) come as part of a chassis -- but you never know until you ask. supermicro.com/wheretobuy
    – Ƭᴇcʜιᴇ007
    Commented Feb 23, 2016 at 21:44

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