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6870 Crossfire setup and temp problem

post #1 of 11
Thread Starter 
Hi mates,

I recently crossfired two 6870 (on a GA-890GPA-UD3H mobo), on bottom one I have the Accelero Xtreme Plus II and on the top one the stock cooler, the bottom one works in normal temps (although there's a problem with the cooler and runs @ 21% no matter what, but that's another issue I need to solve through warranty) but the top one runs at about 45 degrees on idle and about 70 degrees while playing games, doing some 3Ds, etc... Even if I set the fan speed at 100% speed doesn't drop, sometimes even get's hotter when the speed fan is higher.

Anyone has something to suggest as a solution?

I was planning to buy the Accelero Twin Turbo and use it on the top graphics card but after I noticed the problem I mentioned about the higher the speed, temp remains the same or higher, I assumed that the fan sucks hot air from the bottom card and that's why is getting hot.

Also another problem may occur is, if the Accelero Twin Turbo is thicker than the stock fan, means less clearance beetween the cards, and I'm worried may I'll get even worse results.

Here's some photos of the setup, please don't judge cable mess. I know it is a jungle in there, I definitely need a bigger tower but that's a plan for maybe one year from now.

338

I'll swap the cards (if I can fit the Accelero on the top slot) to see if there's is any improvement and I'll post the results. The only bad thing is I can't monitor the temp of the bottom PCI-e slot, if you can recommend any program that will allow me to check both slots will be much appreciated. thumb.gif
Edited by gpktm - 2/4/12 at 7:05pm
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post #2 of 11
i dont think 70c is very hot for that GPU but try too swap the two card too see temp you can download afterburner should give you the temps,....
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post #3 of 11
Thread Starter 
Quote:
Originally Posted by marduk666 View Post

i dont think 70c is very hot for that GPU

I was talking about 70 degrees Celsius. I don't know if you meant the same, I hope you did. smile.gif

As I expected, the Accelero cannot fit in the upper slot mad.gif But I least I managed to drop the temps about 5 degrees by using a spare fan I had and set it to blow horizontal to remove the hot air from the gap forming between the two cards.
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post #4 of 11
70c isn't that high at all. Plus, the top card in a crossfire/sli setup will ALWAYS run hotter than the bottom one. Why aren't you able to get temps for the bottom card? My top 6950 runs about 10 or so degrees hotter than my bottom card, even in idle. But I'm not only crossfired, but running Eyefinity as well.
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post #5 of 11
When my 6870 ref card was brand new and dust free, it was about 70C in BC2 so thats average. After a year of dust its about 78C in BF3 but its also a more demanding game.
post #6 of 11
Thread Starter 
All right guys, seems these are normal temps according to what you say. So what you reckon, should I upgrade to Accelero Twin Turbo or is a waste of money?
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post #7 of 11
I have the dame crossfire setup as you only i have no space between cards and my top card has gotten as hot as 95c i think you are all right. I believe max temp for the cards is 105c.
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post #8 of 11
Quote:
Originally Posted by gpktm View Post

I was talking about 70 degrees Celsius. I don't know if you meant the same, I hope you did. smile.gif
As I expected, the Accelero cannot fit in the upper slot mad.gif But I least I managed to drop the temps about 5 degrees by using a spare fan I had and set it to blow horizontal to remove the hot air from the gap forming between the two cards.

yeah i means celsius i had a 6870 crossfire setup before i were having a little higher temps then you dont worry GPU's can take more heat then a CPU.if what you did with the spare fan help then thats great!!!! i had the same idea with my two 580GTX but now with the case i have im alright.

edit: i would says if you want to buy the accelero expect to keep those GPU for a long time so it is worth it has GPU last longuer if they are well cooled. but personaly if i was you i would buy the accelero so it is up too you but GPU temps are fine!! keep that in mind
Edited by marduk666 - 2/6/12 at 12:36am
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post #9 of 11
Or you could mod a antec 620 to fit.
Iv got 2 of them in my 6850 cross fire setup.

img0311gv.jpg
As you can see the fit quite fine.
post #10 of 11
You can buy the cooler if you want, but make sure it will fit. I think the Accelero coolers wind up making the card take up 3 slots, so there might not be enough room for two of them in your case. Just make sure first.
Quote:
Originally Posted by bmgjet View Post

Or you could mod a antec 620 to fit.
Iv got 2 of them in my 6850 cross fire setup.
img0311gv.jpg
As you can see the fit quite fine.
Man, that is one messy looking rig. Great idea with the 620s, but my god man!
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