Safe to connect GPU to PSU with a single cable?

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conductorslayer

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Aug 21, 2014
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Hey guys, I've got a GPU/PSU question.

I've seen GPUs connected to PSUs two basic ways: with two separate cables going into the PSU, and with one that splits [right and left on the amazing graphic I made, respectively].

GRAPHIC: http://postimg.org/image/7ad6hichl/[

I didn't have two cables fitting the bill when I built my rig last week, so I'm using the latter method [image on the left of my graphic], with a single connection to the PSU using a split cable.

Is this a valid set-up? I should mention that I have been using it set up like this for 2 days, which featured lots of heavy GPU load via video games, and I have had no problems and my temperatures have been nice and cool. I see no reason why it would be a problem, I'm just tech illiterate so my retard brain says "well there's only one connection to the PSU so maybe it's getting less power."

Am I going to run into problems in the future from using the set up shown on the left, or can I safely assume that things will be fine as they have been so far?

PS. Specifically, I am using an EVGA GTX 770 and a Corsair CX600 PSU.
 
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conductorslayer

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Aug 21, 2014
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Thank you. I've asked in a few places online and I have received two types of answers: "yeah that'll be totally fine" and "your PSU is going to explode and/or catch fire." (and one person said "it will be too many amps for the PSU" but they provided no other information and I'm not sure what they meant).

The worrying thing has been that I know one of the answer types is from people who are fucking with me... but I haven't been sure which one.

Like I said though, it's been fine for two days, according to GPU load and heat, the only thing that makes me nervous is that I can't exactly tell how well my PSU is doing using monitoring software (not that I know of, anyway)
 
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jdcranke07

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Feb 10, 2014
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Only time you need to worry about that is when the card specifically needs to be setup with multiple cables like the dual GPU AMD R9 295X2 which consumes 500 watts by itself. So, I wouldn't worry about it with the GTX 770.
 
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conductorslayer

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Aug 21, 2014
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The instruction manual for the GTX 770 says little more than "the card to the power supply," I think they would've mentioned if you needed two cables to do it.

I'd also like to think that, as the GPU has already spent somewhere between 4 and 10 hours under heavy load, if something was going to go wrong with the power supply it would have already.
 
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jdcranke07

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Feb 10, 2014
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If it makes you feel better, I have two GTX 780ti Classifieds in SLI with one cable to each from my Corsair AX1200i PSU. Each cable splits into dual 6+2pin connectors and powers them flawlessly. Even at 198% overclock from base clock of 1020Mhz.
 
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