Can my PSU handle 2 Gigabyte gtx 770 4gb windforce SLI?

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Ajnp

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Nov 27, 2014
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Hey guys this is my current setup.

Case: Thermaltake Armor Revo Gene

PSU: EVGA SuperNOVA 750 G2 220-G2-0750-XR 750W ATX12V / EPS12V SLI Ready 80 PLUS GOLD Certified Full Modular Power SupplyEVGA SuperNOVA 750

CPU: Intel i74770

RAM: G.SKILL Ripjaws X Series 16GB (4 x 4GB) @2133mhz

GPU:Gigabyte GTX 770 OC 4gb Windforce

Cooling: Cooler Master Seidon 120M

MOBO: Asus Z97-A


I want to buy another gigabyte gtx 770 4gb oc windforce and sli both of them but i was wondering if my psu can handle it or will i have to buy a more powerful psu? i won't be doing any overclocking so i was wondering if i really needed something with more power.

here is a link to my psu:
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817438017

and here is a link to the gpu:
http://www.newegg.ca/Product/Product.aspx?Item=N82E16814125462
 
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1N07
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LostAlone

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Jan 3, 2011
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Hmm... Looks ok, but I can't really make a promise. The 770s have IIRC a 230W draw, so that looks like you should get under the PSUs limit. That said, there are other factors at play beyond the power limit. The best way to tell if the PSU is up to the draw is to see if it has enough auxiliary connectors to handle the graphics cards without any adapters. If it does then you almost certainly have enough power, if not then probably not.

 
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1N07

1N07

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Feb 26, 2014
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Simply put: yes.

"The 770 GTX has a TDP of 230 watts which means it can pull a little over 19A on a +12V rail. Two of them in SLI would pull over 38A. Now if you have a PSU with a single +12 V rail, the single rail would need to have at least 38A but actually more because the CPU and a few other components use the +12V rail as well. If you have a PSU with multiple +12V rails, you will need to make sure that each rail has enough Amps per rail and that the total amount of wattage for the +12 isn't exceeded. That means the mulit-rail PSU must be able to supply a wattage in greater than 456 watts.

To sum it up, you're looking for a power supply of at least 700 watts. "
- barto
 
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