EVGA SuperNOVA NEX750B - Is it okay to use this PSU?

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braveheart0707

braveheart0707

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Oct 13, 2013
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CPU: I5-4670k(Plan to OC 4670k to around 4.2 or 4.4 if it lets me)
CPU cooling: cooler master 212 hyper evo
Motherboard: Maximus VI Hero
RAM: G.SKILl Ripjaws 2x4G 1600MHZ
SS Intel 530 180GB
GPU: GTX 780(Do not plan to SLI)
Case: Define R4 Window

PSU in question:
EVGA SuperNOVA NEX750B Bronze

Yes i know it may not be one of the most popular PSU, but couldn't resist buying this for $40 bucks before tax. Is that a crazy bargain or what?

So, Is this PSU gonna be okay for my build? Mostly concerned about stability and noise.

And also, which way should i install the PSU? the fan pointing up towards graphics card or down towards the bottom of the case?

Thanks~
 
Solution
D
Okay, looked it up and it says it has 4 12v rails but reality is it only has 2. So it should be sufficient to power the card. (and everything else). The main concern though is that while it has enough power to power the card, on cheap PSUs like this one, where it is separate, you may trip it if you go over the 240VA limit, which a gtc780 can do. Bottom line is,
A. It will probably work.
B. It may trip under load.
C. They get spilt like this because it lets them use cheaper capacitors, etc and so who knows what else is cheap.
D. I personally would never risk a 650 dollar card ona crappy PSU to save 30 bucks, but to each their own.
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1. The funny thing about crap power supply "crazy bargains" is, if it doesn't work it isn't really a bargain. In any case, that power supply will not handle a gtx780 under load. You only have 240 watts on each 12v rail.
2. The intake fan goes down.
 
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Are u sure about that?
 
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Okay, looked it up and it says it has 4 12v rails but reality is it only has 2. So it should be sufficient to power the card. (and everything else). The main concern though is that while it has enough power to power the card, on cheap PSUs like this one, where it is separate, you may trip it if you go over the 240VA limit, which a gtc780 can do. Bottom line is,
A. It will probably work.
B. It may trip under load.
C. They get spilt like this because it lets them use cheaper capacitors, etc and so who knows what else is cheap.
D. I personally would never risk a 650 dollar card ona crappy PSU to save 30 bucks, but to each their own.
 
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Solution


what PSU would u recommand then
 
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is that the right way to calculate power limit? I am using a gtx 280 at the moment, and accordingly to ur method, my PSU only gives out no more than 210W per 12V rail, yet gtx 280 has a max power requirement of 230W, and its been fine for years

this is weird...
 
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I just ordered the Supernova 750 for $80 to replace my a 650mm Kingwin that displaces 46a on the 12v rail at 552w which is why it trips under loads from my new GTX 780 that needs minimum 42a on the 12v rail at 600w. When one reads that a GPU needs minimum something in wattage I believe that something must also be running the right amperage on the 12v rail. 552w was just not cutting it thence the random reboots when I game. The Supernova 750 running 62a on the 12v rail at 732w is just about where one needs to be to run that 780.

My question is, if I want to OC this GPU and or my 2500k CPU, should I think about stepping it up then?
 
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