Is CM GX750 enough for 770 Sli?

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mfaust

Honorable
Aug 26, 2013
21
0
10,510
Hi, as the title suggest, is Cooler Master GX750w can run two 770 cards? Since I have no idea on how to count the power usage properly, is this psu suffice? Thank you kindly.

My setup
i5 3570k (stock speed, didn't overclock)
Asrock Extreme 4
Corsair Vengeance 1600 4Gb x2
Asus GTX 770 DCU-II x2 (stock speed, didn't overclock)
Plextor SSD 256GB
WD Green 2TB
WD Black 1TB
WD Blue 1TB
Cooler Master Hyper Evo 212
5 Fans (Corsair/Enermax)

Lastly
Cooler Mater GX750W
 
Solution
sincreator
In my opinion it's too much money to risk on a cheap PSU. According to Jonny Guru that PSU is not very good at all, then again most coolermaster PSUs are junk. He actually calls it a 600w PSU since it can't deliver close to 750W : http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=188

I would get a Corsair, Antec, XFX, Seasonic psu if you go to purchase one. 750w-850w should suffice for overclocking and running 2 x GTX770 in SLI.

Hope this helps.
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M

mfaust

Honorable
Aug 26, 2013
21
0
10,510
So, it's safe to say that my PSU can handle two 770? I'm considering to change my PSU but not atm. After that, maybe I dwell in the art of overclock later after finishing my rig. Thanks again.
 
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huilun02

Splendid
Feb 29, 2008
4,324
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24,960
Yes. If you do attempt to overclock anything with the GX750, it might appear to work but you have to test for stability at full load. Otherwise you will find out the hard way with artifacting, game crashing, or even a full crash while you are playing your games.
 
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sincreator

sincreator

Splendid
May 27, 2009
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22,110
In my opinion it's too much money to risk on a cheap PSU. According to Jonny Guru that PSU is not very good at all, then again most coolermaster PSUs are junk. He actually calls it a 600w PSU since it can't deliver close to 750W : http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=188

I would get a Corsair, Antec, XFX, Seasonic psu if you go to purchase one. 750w-850w should suffice for overclocking and running 2 x GTX770 in SLI.

Hope this helps.
 
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Solution
sincreator

sincreator

Splendid
May 27, 2009
2,479
0
22,110


I wouldn't trust that PSU with SLI 770's at all honestly. One 770 would be fine most likely, but in the review I linked they mention over heating issues with that PSU, and questionable capacitors. Running 770 SLI will cause temperature to increase even more so, causing a crash/PSU shutdown and possibly blow a cap as well. If this happens it very well may damage other components in his system. Not worth the risk in my opinion.

 
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M

mfaust

Honorable
Aug 26, 2013
21
0
10,510
Awww, so that means I still have to change my PSU. :/
Well the point is, a 750w PSU can powered up two 770s and sufficed?

And I'm thinking of getting a full modular for great cable management, so is Corsair AX860 good? Apart from the all the PSUs aforementioned by u guys. Thanks for the feedbacks
 
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sincreator

sincreator

Splendid
May 27, 2009
2,479
0
22,110


Yes a good quality 750w unit will power 2 x gtx770, but if you want a little headroom for overclocking your CPU+GPUs then the AX860 will suit your needs very well.

 
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