Motherboard ATX Power Connection: 4pin connection from 8 pin PSU?

digitalsundog · Jan 21, 2015

Hey Everyone,

I'm currently starting my first build. I have a ASUS X99 Deluxe motherboard, Intel Core i7-5820K processor with a EVGA GeForce GTX 980 graphics card. I am powering my system with a EVGA SuperNOVA 1000 P2 (80Plus Platinum Certified ATX 12V/EPS 12V).

My question is a basic one. The power supply has a 8 pin socket CPU connection just like the motherboard. The provided CPU cable has a 8 pin socket connection on one end and is split into two 4 pin socket connectors on the other. Is a single 4 pin connection sufficient for the motherboard? If I plug in both 4 pin connectors to the 8 pin socket will that damage the motherboard?

The motherboard manual shows either a 8 pin socket connection "or" a single 4 pin. When it comes to power supply units I want to be cautious in this situation.

laviniuc · Jan 21, 2015

they're designed like that for compatibility. if you have 8pins on both use that.
(for example if you had an older psu, that would have just 4pins so the motherboard manufacturers thought to allow you to use it nonetheless... same for the psu with an older motherboard, you'd have hated it to have to upgrade the motherbaord to use your brand new psu)

digitalsundog · Jan 21, 2015

The power supply is designed to use the 8 pin socket connection. It doesn't support the dual 4 pins. It was the dual 4 pin connections that through me off. You're confidant plugging in the dual 4 pins to the 8 pin connection on the motherboard is designed for that compatibility?

laviniuc · Jan 21, 2015

i guess, yes, but better wait for another reply just in case.

if they fit it's gonna work, the sockets are shaped such that anything that isn't compatible you couldn't plug without breaking them.

ccampy · Jan 21, 2015

That's how powers supply's are they split so it can be used with a 4 pin socket boards you can us the full 8 pins as that's how it is designed

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Motherboard ATX Power Connection: 4pin connection from 8 pin PSU?

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