Can a modular 650w psu handle gtx 970 in sli

Hammahness · Jun 30, 2015

Im planning on future proofing my rig by buying another 970 to sli it but I dont know if a 650w psu can handle the two cards, overclocked also IF possible, because its the only psu I can afford as of right now along with the second gtx 970.

celtic_warrior99 · Jun 30, 2015

What model PSU?

Suztera · Jun 30, 2015

What 650W?
If it is a decent 650W psu possibly but a 750W would be ideal and better in the long term.

Rhezner · Jun 30, 2015

yeah it will be fine. A single card with a 4960x will consume less than 300 watts in real benchmarks (obviously you would not want to use this in reality), another gpu will raise that to 500 watts but your 650 watt psu should be enough.

http://www.anandtech.com/show/8568/the-geforce-gtx-970-review-feat-evga/15

turbopixel · Jun 30, 2015

I got a 650 W psu too, for adding a second GTX 970 to it. I did calculations and everything and I think a good 650 W psu is enough. I also have a 80 W cpu and most recommendations expect a more consuming cpu, plus they assume a cheap psu with weak elements. Thats why recommendations are above the minimum requirement.

I choose one of the best 650 W psu with highest quality build and high efficient 80+ Gold rating. Its from Super Flower (have to check exact name at home). On the other hand, I do not overclock. If you want overclock cpu and gpu, then you should have at least 800 W. 700 W is recommended at least.

Super Flower Leadex Gold schwarz 650W ATX 2.3 (SF-650F14MG black)
http://geizhals.de/super-flower-leadex-gold-schwarz-650w-atx-2-3-sf-650f14mg-black-a1041526.html

But I have a single graphics card. I can test it mybe end of year...

Here is my thread:
> http://www.tomshardware.co.uk/answers/id-2663326/psu-super-flower-sea-sonic-500-660-platinum-gold-fanless-semi-decide.html

Hammahness · Jul 13, 2015

Sorry guys that i haven't checked this forum for a while but the psu that I mentioned is a Corsair CMPSU-650TX 650-Watt TX Series 80 Plus Certified Power Supply. Is this a good power supply for the sli build? I don't overclock at all, my cpu is a i5 4670k, and has 16GB 1600mhz ram. Will this support everything in my future build? The two cards i'm gonna install is a zotac gtx 970 and a gigabyte windforce gtx 970. Also will my cpu bottleneck the performance of the sli in anyway?

turbopixel · Jul 13, 2015

I wouldn't trust on this psu from Corsair. Even if you don't overclock anything. Important is to check the 12v rail, what ampere it is able to hold.

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Can a modular 650w psu handle gtx 970 in sli

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