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Best 6950 model for Xfire

H

Heavyside

n00b
Joined
Jun 9, 2011
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I'm wondering if anyone can recommend some models of 6950 that don't overheat when set right next to each other in xfire. Was initally interested in the msi frozr card except that this guy said his were overheating when set right next to each other.

http://hardforum.com/showthread.php?t=1596910&page=2

Not interested in unlocking to 5970 (after reading this thread), but interested in unlocking shaders and oc'ing if possible.
 
I have two Sapphire 2gb 6950's in xfire on a Gigabyte 890 board...

The mb only has 2x pcie slots - and with both cards in, I have about a little less than a 1/2 inch in between the two, and the max temps I saw were about 70 - 73c (and that was using a stock fan profile courtesy of CCC..) I have to say though, they are very quiet, considering...

If I placed both fans @ 100%, run Kombuster at it's most extreme settings, I hardly go past 62c (thats also with an eyefinity setup @ 1080)

My CPU is watercooled and I have a couple of Scythe ultrakaze fans as side - front - bottom - as intakes, and one in the rear + two generic fans at the top for exhaust..
 
That was my thread; I ended up with reference style 6950's in xfire next to each other and spacing them out a bit with the zip tie trick (well a piece of a silicone pad in my case) I've never seen temps higher than 75c (even with ambient temps of 86-88f, no AC in the computer room) from either card (with sane room temps of 68-72f my cards are usually 68-70c). However...

I have a FT2 case which puts the "back" of the computer at the top so the cards are vertical rather than horizontal. The case is designed to pull air from the bottom and push out the top. The frozr's were fighting the case's cooling (the frozr's were exhausting right into my intake fan) and that was a big contributor to my high temps. Conversely reference cards pull air from the bottom and exhaust from the top which is exactly what my case is designed to do.

If you have a case like a HAF X with a big side intake fan you'll probably see very different results than I did with the frozr cards; so you should take my results with a grain of salt (unless you're using one of Silverstone's stack design cases). When crossfiring cards with 2 slot spacing mobo's you have to think about how air flows through your case and use cards that will work with that airflow.

Whatever cards you end up with, if you space them out with something (like a zip tie) you'll get substantially cooler temps; especially if you go with reference cards. Reference cards with a full shroud actually touch when used with 2 slot spacing, so anything to force them a bit apart helps.
 
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