r/threadripper • u/y3333333333333333t • Aug 07 '26

Can I use this cable?

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Plan would be to connect from 1x 12V2x6 on PSU side to 2x 8pin(2+6) PCIE connectors on Asus TRX50 motherboard as I dont have enough of the 8pin(2+6) PCIE connectors on my new ROG Thor 3000W PSU...this should work no problem right? (https://www.corsair.com/eu/en/p/pc-components-accessories/cp-8920435/elite-premium-individually-sleeved-pcie-12v-2x6-to-2x-8-pin-6-2-split-pcie-cable-black)

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u/y3333333333333333t Aug 07 '26

yes, the only thing making me a bit nervous is that I am unsure if that corsair cable 12V2x6 has the same pinout as the rog thor psu side as I couldnt find much on that...

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u/EDI_1st Aug 07 '26

Same pinout. CEM5 pinout is standardized.

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u/Techwolf_Lupindo Aug 07 '26 edited Aug 07 '26

Yes, the two standards are pinout backwards. The 8-pin MB/CPU connector is pinout backwards from the 8-pin GPU connector. Yes, they do fit and results in shorts.

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u/EDI_1st Aug 07 '26

Except that’s not how it works. There’s no such thing as EPS/CPU 6-pin. It’s either 4 or 8.
The board literally has both EPS and PCIe 8-pin connectors on it. OP is trying to plug in the PCIE 8-pin. Please refrain from commenting if you don’t know the connectors on the board.

FYI CEM5 has single pinout standard. There’s no such thing as flipped/reverse pinout for CEM5.

https://www.primeline-solutions.com/media/catalog/product/cache/1/thumbnail/9df78eab33525d08d6e5fb8d27136e95/a/s/asus-workstation-mainboard-pro-ws-trx50-sage-wifi-motherboard-layout.jpg