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Considering going SLI 460s

Phenomenologica

Phenomenologica

Phenomenologica

Associate
Joined
11 Apr 2011
Posts
710
Location
Somerset
I've already got one, and I gain members market access tomorrow (theoretically), so I'm strongly considering taking someones unwanted 460 off their hands and going SLI. I just have a couple of quick questions:

1. My motherboard is a Gigabyte P67A UD4 B3 revision. From what I can find online this will support 8x8 SLI fine. Can anyone confirm this to soothe my paranoia?

2. I have a 600W OCZ PSU. Again, from what I can find this should be alright if a bit marginal. But I'm concerned that if I overclock the graphics cards and considering my CPU clock it might be a bit much for the poor thing, and I can't afford to upgrade it at the moment. :( Thoughts?
 
Well the PSU calculator states a minimum of 534W should be used. This is without the HDD's, fans etc, as I do not know what you have in your system. I did a basic 1 HDD and an optical drive along with the 2500K OC in your sig. and the GTX 460.

600W will really be pushing it and you might find it is insufficient. You might want to try the bay as well. If you find you do have enough money for a PSU, then I would recommend this:

http://www.overclockers.co.uk/showproduct.php?prodid=CA-006-LA&groupid=701&catid=123&subcat=2057
 
I've looked at a couple of review sites and they both put the system power draw at full GPU load in the mid 400s, though that's with no CPU load. The calculator values tend to be a little pessimistic although I assume that's with no GPU overclock. What I'm concerned about is if the 12V rail would be able to deliver enough power.
 
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Stealthxstream 2. Found some interesting figures that seem to show it very happily supplies 600W at over 80% efficiency and can push to over 700W before the safety cut out kicks in, which has made me a little more confident. Seems it can actually handle its rated output.

http://www.hardwaresecrets.com/article/OCZ-StealthXStream-2-600-W-Power-Supply-Review/1058/7
http://www.hardwaresecrets.com/article/OCZ-StealthXStream-2-600-W-Power-Supply-Review/1058/8
http://www.hardwaresecrets.com/article/OCZ-StealthXStream-2-600-W-Power-Supply-Review/1058/10
 
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