HD7950 Crossfire Overheating

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rancorhunter

Junior Member
Jun 13, 2013
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Setup:
Intel i5 3570k using ASUS Suite II @ ~4.2 GHz, stock cooler
ASUS P8Z77-V LK
MSI Twin Frozr Radeon HD 7950 3GB @ oc @ 900/1025
XFX Double D Radeon HD 7950 3GB @ stock @ 900/1025
8GB (2 x 4GB) G.Skill DDR3 PC 1600

When playing Witcher 2 or Crysis 3, in crossfire, the XFX 7950 is reaching +90C @ 99-100% fan speed while the MSI will reach ~83C maximum. Alone the XFX maxes out in the low/mid 80s. No problem either way with the MSI. I cleaned the dust and rewired my case, Cooler Master Cosmos 1000, to maximize airflow with no luck. I now have a box fan blowing in the side of the case and it is keeping temps down to mid 80s. Does anyone have experience with this?

Is this a matter of airflow? Will an aftermarket cooler help the XFX? Faulty card? Crappy BIOS? Liquid cooling?
 
Stuka87

Stuka87

Diamond Member
Dec 10, 2010
6,240
2,559
136
XFX's are known for having a very poor cooling setup. Arguably the worst out there.

What case do you have? With open air coolers you need a lot of chassis airflow to get rid of the heat.

EDIT: See you have a Cosmos 1000
 
Last edited:
guskline

guskline

Diamond Member
Apr 17, 2006
5,338
476
126
I went with a CM HAF 932 Advanced for that very reason. Great case for for cooling. The Cosmos 1000 is a great case for being quiet but running two 7950s will generate heat. I have my 670s in sli with the exhaust blowing out the back for this very reason.
 
p_monks33

p_monks33

Golden Member
May 22, 2011
1,292
5
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I don't think the card is faulty, two open air cards in crossfire are going to overheat without direct airflow over them. You would be better off with reference cards.
 
R

rancorhunter

Junior Member
Jun 13, 2013
3
0
0
Yeah I wasn't too sure which configuration to use; push, pull, push/pull. I figure I'll try all combinations to test the best results.
 
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