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Can I xfire (space issues)

post #1 of 6
Thread Starter 
The board is ASUS P6X58D Premium

The card(s) are Radeon HD 5870

If you put the first card in the first slot and you put a second card in the next slot you have almost no space, and it seems (obviously) the fan blows down which would cause the top fan to exaust right on the board of the second card, if I used the bottom slot it would be a bit slower but there would be space, BUT also it would mess with the various cables attached to the bottom of the Mobo.

So I guess the question is will it super heat the second card if that close and does that 3rd slot method work with those cables, aka does it fit, and will performance be hit hard
post #2 of 6
I thought the fan blows upwards - hence the exhaust slots on the back panel of the card. When I tried it with my 2 5870's (before I went w/c), there was a 3-5degree difference in temp between the 1st and 2nd cards.

You won't see a massive drop if you use the bottom slot - going from x16 to x8 is just a few % points difference - you won't notice it.
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Black Red
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post #3 of 6
x8 will drop the performance of your 5870 at most 2%.

The lower temperature is much more important.
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post #4 of 6
You'll be fine in all respects.
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post #5 of 6
Thread Starter 
hmm my other problem is if I DO use the bottom slot, the audio, usb and sata etc are right there, the thickness of the card will push them down alot, I guess ill just have to try, but the temp of the two "sandwiched" cards shouldn't be too bad you say?
post #6 of 6
I have the -E version of your board and 6870s in crossfire. You will be fine. Its tight, however make sure your case has good cooling solutions and youll be fine. My cards never get above 70c under full load.

EDIT: Dont use the bottom slot....Use slot 1 and 2.
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