corsair TX850 for 8800GTX Tri SLI

[kayawish24]

i want to know that i have corsair TX850 850watts PSU in which 12V is 70A and its only one 12V rail so the question is can i put Three 8800 gtx cards on it to have Tri SLI? or i have to go for 1000 PSU??????

[Rich'[ard]]

lol that is a lot of power (your GTXs). i'd feel better if i had 1000w. but there's a site that you can visit to measure your power usage.

here:
http://www.extreme.outervision.com/psucalculatorlite.jsp

[ZL1]

;5939778"]lol that is a lot of power (your GTXs). i'd feel better if i had 1000w. but there's a site that you can visit to measure your power usage.

here:
http://www.extreme.outervision.com/psucalculatorlite.jsp

I feel similar, Id think its ok and Id def try it as it is, I have confidence in that psu, but 3 x gtx is nuts too, so Id test it out, if something upgrade