750w PSU enough?

[mitchverrier85]

Hey guys,

I have a Asus crosshair v with fx8350, coolermaster 212evo cpu cooler, 8gb vengeance ram (2x4gb) 250 Samsung ssd, 1tb 7200rpm HDD, 1 x Asus gtx 770, standard dvdcdwr drive, 4 x fans and 4 x USB devices and few LEDs here and there. That is all run from my OCZ fatality 750w bronze PSU 80+ bronze.

My question being could that handle a second gtx 770 in SLI? I've done a few PSU calculators but they all come out different so I'm not really trusting them!

Has anyone got the same sort of rig and running it fine or know for a fact it would be ok?

Thanks!
Mitch

 

[i7Baby]

A pc with a GTX 770 in it needs a minimum of 42A on the 12V rail and 600W in total. http://forum-en.msi.com/faq/article/power-requirements-for-graphics-cards

770's in SLI need 850W minimum http://www.realhardtechx.com/index_archivos/Page362.htm

Make sure you have a good power quality supply - from Tier One on - http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html#13224310

 

[envy14tpe]

In terms of do I have enough power for it? give this a try:
http://www.extreme.outervision.com/psucalculatorlite.jsp

 

[terry4536]

I agree with i7Baby, an 850 watt PSU is the way to go for SLI. 600 Watts for one GTX 770.

 

[envy14tpe]

Things that I've read says the 770 SLI pulls 400W, then add in the other components. I would feel comfortable running 770 SLI with a 8350.
http://www.guru3d.com/articles_pages/geforce_gtx_770_sli_review,4.html

Another review that makes me feel like it is ok.
http://www.legitreviews.com/nvidia-geforce-gtx-770-reviewed-in-2-way-sli-and-nvidia-surround_2210/11

If it were 280x Crossfire then I wouldn't recommend it.

 

[epiczombiekill]

Yeah your PC with one 770 isn't using more than 400 watts so you should be good to go with an sli setup as long as you have the PCI-e connectors to feed those beasts.