Can I power two GPUs with a single dual 8-pin cable?

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bran_donger

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Jun 16, 2015
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Exactly as the title says. I have an XFX full-modular PSU and two GTX 960 SSCs. The PCI-e cables on the power supply each have two 8-pin headers.

So can I use a single cable to power both cards, or must I use separate cables?
 
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JasonL265

JasonL265

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Apr 3, 2015
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If your power supply only has a single cable, then the PSU itself probably isn't meant for SLI and does not supply enough power for two cards. How many watts is your PSU?

I think for GTX 960s SLI you need like 600 Watts, i would go for 750 just to be safe since yours are SSCs.
 
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bran_donger

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Jun 16, 2015
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Ah, that's not what I meant. It's an 850W XFX Pro Black Edition, more than enough to power two 960s. There are plenty of PCI-e cables, but I'm just wondering if I can just use one instead of two, for the sake of cable management.

And by using one, I mean it's fully modular, and a single PCI-e cables has TWO 6+2-pin headers, probably meant to power cards with two power inputs. I want to know if I can use ONE of those to power TWO cards.

 
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