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Do I connect two separate psu cables for one video card?

Last response: in Graphics & Displays
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January 20, 2013 10:17:25 PM

I know this is an easy one but I build computers every 5 years or so and forgot. So I have a seasonic 750w psu with two cables that have double connectors for a standard high end video card as well as a gtx 660 ti. So should I use both cables and only connect one connector on each to the video card so as to easy the load along two channels? Or should I just plug the double end into both video card sockets?
January 20, 2013 10:21:54 PM

No, it shouldn't matter. On my AMD card I use the same modular cable from my PSU to GPU and have for almost two years now.
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January 20, 2013 10:24:03 PM

Assuming the separate cables are on different 12v rails, you would distribute the load better using 2... I'm sure you will be fine using the 2 connectors on 1 cable though.

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a c 171 U Graphics card
January 20, 2013 10:24:47 PM

Matters on my Antec 750W Green. If I use the same cable it won't work. If I use one from each, its fine. Try it whichever way you want, if it doesn't work then try it the other way.
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January 20, 2013 10:32:00 PM

Wow quick replies! I think I'm going to use two cables then since I have no reason not to, right? There are like 4 extra slots anyway. After installing windows I'll check the benchmarks and see if it looks good.
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a b U Graphics card
January 21, 2013 12:14:16 AM

noho said:
I know this is an easy one but I build computers every 5 years or so and forgot. So I have a seasonic 750w psu with two cables that have double connectors for a standard high end video card as well as a gtx 660 ti. So should I use both cables and only connect one connector on each to the video card so as to easy the load along two channels? Or should I just plug the double end into both video card sockets?

It's a single rail power supply
Can pretty much gaurantee the dual connector cable will work, I use one to power my GTX570
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a b U Graphics card
January 21, 2013 1:14:16 AM

personally i would use 2, technically if too much is riding on a single cable it might burn. im not saying it will happen to your case since i know seasonic uses quality parts and cables, but the thicker the cable the more load they can handle. so it is safer to user separate connections. and yes you have four so why skimp right?
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a b U Graphics card
January 21, 2013 9:37:27 AM

Cons29 said:
personally i would use 2, technically if too much is riding on a single cable it might burn. im not saying it will happen to your case since i know seasonic uses quality parts and cables, but the thicker the cable the more load they can handle. so it is safer to user separate connections. and yes you have four so why skimp right?

Take a look, may help you to understand why the OP wouldn't be "skimping"
http://www.moddiy.com/products/Seasonic-X-Series-GPU-PC...(Red%7B47%7DBlack).html?gclid=COmh9Kyt-bQCFQqk4AodS0IAtw

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