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GTX 580 + 9800gt PhysX cards too close? - Page 2

post #11 of 31
You'll have a lot higher temps, but other than that it is fine. Using the 9800GT as PhysX will probably make your 580 slower. 580 is powerful enough to handle all PhysX on its own.
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post #12 of 31
Quote:
Originally Posted by mtbiker033 View Post
i think it's an optical illusion, if you notice the shroud on the 580 slopes down towards the right. If you look just at the 2 pcb's on the cards they look parallel.
Aw man. Yeah, I just used a ruler, and the two PCBs are indeed perfectly parallel.

Unintentional trick photography.
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post #13 of 31
Quote:
Originally Posted by lpjz50 View Post
So is it SAFE TO RUN THE CARDS TOGETHER THAT CLOSE?

If your bloody temps are fine yes. But I would just run the 580 alone personally.
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post #14 of 31
Thread Starter 
a 580 slower because of help? Really? Uhh well...that would only make my temps hotter cuz their close or cuz the fans blocked?
post #15 of 31
Quote:
Originally Posted by lpjz50 View Post
So is it SAFE TO RUN THE CARDS TOGETHER THAT CLOSE?
I've seen 4-way SLI, those things are jam-packed. I think it's safe, just as long as you have enough airflow to the 580. I guess temps are gonna be your problem, but I'm not sure.
    
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post #16 of 31
Thread Starter 
Quote:
Originally Posted by twocables View Post
aw man. Yeah, i just used a ruler, and the two pcbs are indeed perfectly parallel.

Unintentional trick photography.
i tried!
post #17 of 31
Quote:
Originally Posted by lpjz50 View Post
a 580 slower because of help? Really? Uhh well...that would only make my temps hotter cuz their close or cuz the fans blocked?
They are close to each one, resulting in reduction in airflow. Also your 580 will be sucking in heat from the 9800GT.

580 can run PhysX on its own. Letting a slower card, 9800GT do it.. may make it worse. I'd run the 580 on its own.
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post #18 of 31
Quote:
Originally Posted by lpjz50 View Post
a 580 slower because of help? Really? Uhh well...that would only make my temps hotter cuz their close or cuz the fans blocked?
Yeah, There was a user who did a comparison and found that it takes a GTX 285 to completely relieve the physx processing from the GTX 480 and 580.

I'm quite sure it's because the GTX 580 can render stuff so quick it has to wait on the PhysX card to finish. This results in a delay between the processing and rendering of the cards that wouldn't happen with just running PhysX on a single 580.
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post #19 of 31
Yeah, the 580 is a very, very, very powerful card. Using the 9800 GT as PhysX is probably a waste.
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post #20 of 31
why don't you switch the cards around? or use the bottom 8x slot for the 9800gt?
    
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