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You need a ???W PSU for SLi? - Page 2

post #11 of 14
Quote:
Originally Posted by Willis1458 View Post
Thanks.
Maxishine is insane ^_^
My PSU is fine thanks.
Yeah I know he has one hell of a PC
post #12 of 14
Also remember it is not just about watts, but the amount of amps on a rail (and total amps).
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post #13 of 14
Quote:
Originally Posted by igob8a View Post
600W or even 500W is good.
This guy's Tri SLI setup with 8800 Ultras use no more than 560W.
1000W PSUs are overrated ;P

YouTube - 3-way SLI Crysis cruncher
Thats 550W idle, its probably about 700-800W at load....
post #14 of 14
Quote:
Originally Posted by igob8a View Post
600W or even 500W is good.
This guy's Tri SLI setup with 8800 Ultras use no more than 560W.
1000W PSUs are overrated ;P
1000W might be overkill unless you have something like 3 optical drives, a 4-drive raid array, tri-sli, dual socket setup like skulltrail, everything OCed like crazy with a bunch of cathode fans.

However, having a couple hundred extra watts to spare means the PSU won't be stressed at any time, which will keep it cool and efficient, and you can be sure none of your rails will fluctuate, which is a good piece of mind when OCing.

I have a 750w and I'll probably never go past 500w, and knowing that I have that headroom is good. If I had a 500w and knew I was using 450w-475w I'd be weary. Any constant load over 90% is bad on the PSUs capacitors and will usually shorten the life of your PSU, this is especially important if your machine is running 24/7 at full load, like folding.
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