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Tri Sli 280's / OC'd I7 n Corsair HX 1kW

rjbarker

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Well broke down and picked up the 3rd GTX 280...couldn't resist the $285 price for SC version...so far OC's well enough to match my other two SSC versions. Anyhoo...no problems so far for the HX 1kW powering everytihng, enough for a Vantage run ......
Just the heat...whooaa....may have to shut this sucka down till Oct :).........
 

MpG

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Kitchener, ON
Do you have access to a kill-o-watt or similar? Be interesting to see some real numbers when doing some artificial stresses (i.e. Prime95/Furmark).
 

rjbarker

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Sorry, I don't MpG.........Temps get pretty outrageous just running Vantage though...the lowest Card not too bad...idles at 39c...middle n top idle 46c all temps with Fan at 60%.
Vantage run the upper 2 Cards were around 76c and bottom 62c w Fan at 75%.........
Pretty toasty in my upstairs room.
 

kruzn4evr

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Ajax, Ontario
Those temps don't really sound that bad all things considered RJ. Its going to be noisy but crank the fan speeds up to 80% and see what the temps are under load. These 280's run pretty warm no matter what, maybe try rigging a couple of 120mm fans pointing at/over/under, the more air flow you can get the better :thumb:

Oh yeah, your PSU should be fine for running tri
 

rjbarker

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Yeah it is quite warm in this upstairs room...was +26c outside today....likely pushing 28c in this room.
With GPU Fans at 80% and a Vantage run:
Top Card
Idle: 49c Full Vantage Load: 76c
Middle Card
Idle: 49c Full Vantage Load: 77c
Bottom Card
Idle: 41c Full Vantage Load: 64c

Oh well...knew it would be warm.....couple of months things will be cooling off.

btw
FC2 1920 x 1200 Res all Ultra High - No AA / AF - 118 FPS (with 2 x SLI same settings was 103 FPS) - slight increase.

Definitely is pretty cool though :)
 

DarKStar

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Jul 15, 2008
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Canada
1.2Kw - wow - I hope his computer is on a dedicated breaker LOL one of these days our computers will run on the 220V circuits !

Tri-SLI, can you imagine the noise when all 3 fans are at 100%, I hope you have a good pair of noise insulated headphones when playing games - you must have a nice utility bill ! :D
 

kruzn4evr

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Ajax, Ontario
Well, my 3 280's are on WC'ing so I don't have the noise issue and the UPS along with being on a dedicated breaker means I don't even worry about power ;)
 

rjbarker

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Courtenay, B.C
The noise from all 3 Fans surprisingly enough isn't all that bad at all.....80% is fine no need for 100%.......not much audible difference between 1,2 or 3 GPU's really...in all three cases sounds like a nice "woooosshhh"....

Hydro Bill...haven't given it much thought really.....but I certainly don't game for marathon periods of time at all and these Cards are all "downclocked" when Word Processing or surfing...
 

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