Needing some help with a Power Supply for SLI and possibly bottlenecking.

Strasta

Honorable
Feb 4, 2014
15
0
10,510
Hey everyone! About a year ago I bought a GIGABYTE Windforce GTX 770 4GB GPU. I'm considering throwing in another 770, but I'm not exactly sure what brand yet. I understand that SLI can be a hassle a lot of the time, but if I didn't like the hassle of it all I could just put the other 770 in another computer that I have that could use the upgrade.

My question is though: I have a 750W power supply, which is this one right here to be exact.

http://www.coolermaster.com/powersupply/gx-series/gx-750w/

Rig Specs, also.
CPU: i5-2500k @ stock speeds
Motherboard: Asrock Z68 Extreme3 Gen3
Memory: 8GB Mushkin DDR3 1600Mhz
PSU: Cooler Master GX 750W (Bronze Rating)
Hard Drive: Western Digital Blue 600GB
SSD: Kingston 240GB


Would this power supply be enough for SLI 770 with no CPU overclock? And I feel as if the i5 would bottleneck if there was no overclock, so any help with this? Would I need to buy a new power supply?
 
Solution
I have 2 4gb 770 windforce cards and I would not run them on an 750w psu. It would stress a good 750w psu and the gx is not even close to being a good unit. The gx series is poor quality and can damage component's. I suggest using a good quality 850w unit. With sli just make sure it's the same gpu and has the same amount of vram, you can't sli a 2gb and a 4gb card.

bignastyid

Titan
Moderator
I have 2 4gb 770 windforce cards and I would not run them on an 750w psu. It would stress a good 750w psu and the gx is not even close to being a good unit. The gx series is poor quality and can damage component's. I suggest using a good quality 850w unit. With sli just make sure it's the same gpu and has the same amount of vram, you can't sli a 2gb and a 4gb card.
 
Solution