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Noob question regarding PSU cable choice for a GTX 680 (8+6 PINS)

post #1 of 4
Thread Starter 
Hi all

I just got my self a used GTX 680 some weeks ago. I installed the card and connected it to the PSU with a power cable that came with the PSU (Corsair AX 860). The GPU needs one 8 PIN and one 6 PIN connecter from the PSU, so I used a cable that use one single 8 pin slot on the PSU and has two 8 pins (2 x 6+2) at the other end for the GPU.

I read that an 8 pin slot on the PSU can provide 150 W and the graphic card use more than 150 W (approximately 175 W).
When the card is under load, it won't go over 75-80 % power usage (in GPU-z).

Can/should i use two power slots on the PSU to connect the GPU with two seperate cables to get higher power usage? Or should stick with the setup i have now?

I really can't find any specific answer to this question anywhere :-).

With best regards
Nicolai
Edited by 9colai - 9/7/15 at 1:24am
post #2 of 4
Wait so you only have one power connector plugged into the card? and it is working? Both power plugs on the GPU should be plugged in.

*edit* Nevermind I think I understand. No you dont need two independent cables...as long as both plugs on the GPU are plugged in.
Edited by phenom01 - 9/7/15 at 1:09am
post #3 of 4
While it is generally recommended to use two separate cables for a gpu, the single cable with two plugs at the end will be fine for a GTX 680. Unless you have a Lightning or some other custom version that will be using ~1.4v+, then use two cables.
    
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CPUMotherboardGraphicsRAM
Xeon E5-1680 V2  R4BE  TITAN X (Pascal)   2666 Dominator Platinum CL10 
Hard DriveCoolingCoolingOS
750 NVMe 1.2TB EK HF/rx360/rx120 EK FC/GTs/mcp655 Windows 10 Pro  
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BL3200PT 1600 T2 800d Pro Audio 2.1 + DragonFly Red 
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post #4 of 4
Thread Starter 
Okay fine. So it is possible for heavy overclocking...

It is a ASUS DirectCU II OC card and i actually have had some graphical glitches at game startups (screen filled with artifacts) and a crash while gaming. It could be something else than the GPU, maybe windows 10, but i was wondering if my card don't get enough power now when it's factory overclocked. The tempereatures doesn't go over 65 degrees celcius so heat is not the problem.
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