Will a 750 Watt PSU power two gtx's 770's SLI?

mattewolf

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Sep 7, 2015
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Okay, so here are my specs.
Power Supply: Corsair cx750 watt
GPU: GTX 770 titan cooler
CPU: AMD fx 8350 (no overclock)
RAM: 8 GB (2 x 4GB) DDR3 1600mhz
DRIVES: 1 SSD 250GB + 1 7200 RPM 500 GB
DRIVE: RW blu ray drive+ dvd player (this is only 1 drive)
SOUND: Asus sound card
CPU COOLER: Coolermaster Hyper T4 (Two 120mm fans attached)
MOTHERBOARD: Gigabyte GA 970A DS3 AM3+

and my question is, can i add another gtx 770 in SLI to my build without going over the 750 watt? I used one of those PSU calculators and two different calculators said that the reccomended wattage is 720, but is that really so? i definately thought that the wattage would be higher.

 

Zerk2012

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The TDP of the GTX 770 is 230 Watts
460 video cards
125 processor
80 for the rest
= 665 Watts
You would be using in the 90% area of the power supply under full load. The quality of the CX series are rather bad NOT going to work.
If you had a quality 850 Watt PSU I would say yes.
 

mattewolf

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Sep 7, 2015
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I was looking on newegg and here is what i found, should this be a viable PSU or can you recommend a good brand of PSU's? http://www.newegg.com/Product/Product.aspx?Item=N82E16817438030
 

Zerk2012

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Best deal I seen their. Your cards do require a 6 pin and 8 pin connector right.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207011