XFX HD7950 gettinq too hot! please help guys

Locopatre

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hello,
i have build my first pc, but the GPU temperatures are getting too hot while gaming.
i have 2 HD7950's and they are close together(matx), i also get high temps with one GPU.
2 GPU: 38-42C when idle, 88-99C when gaming(under load)
1 GPU: 42C when. idle, 85C when gaming(under load)
i have 3 fans installed, one front 120mm(inhale) one side 120mm(inhale) one back 80mm(exhaust)
-i even tried with the side removed, i still get the same temps if not higher.
-i also tried wirh the side removed and one big housefan blowing air at the fans! it got 80C while gaming with 1GPU.
-i also tried both gpus at once= same stats..
it is really bothering me because i have a new matx motherboard so i cant buy a new case and big mobo, maybe u can return the mobo...
please help me guys i appreceate it
sorry for my bad english.
 
Solution
I don't see it. it just looks like you got hot running cards I mean you said you had a house fan blowing straight on them just to get them to 80c seems like a lot of wind pushing on them that's about direct air flow as it gets .. funny thing is I done this with my computer to see how much cooler it would run and the temps stayed the same but there fans would spin down to maintain the same running temp.. with out house fan 64c @ 34% fan speed with house fan 64c @ 31% fan speed so it was like this card is running 64c at full load no mater how much air I pushed to it

Locopatre

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the exhaust fan is stock(aerocool)
the side and front fans are aftermarket and threy are 60-80cfm i believe.


oops... i suddenly pressed that best answer button now it says its a solved thread....
 

CGurrell

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I unselected it :) Do you know the brand/model of your front/side fans? And does your case only support an 80mm rear fan or can its size be increased?

Also, could you check your CPU temps using realtemp when at idle and at full load? And also what is cooling your CPU? (This is just to get a general idea of the airflow in your case, which we could also use the make/model of :) )
 

Locopatre

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thank you!
the rear fan slot is just 80mm, i have these aftermarket fans:
-spire fan blower 120, 1500rpm, 65cfm, side)
-Arctic Cooling ARCTIC F12 , 1300rpm, 73cfm , front)
the cpu cooler is just an stock intel cooler, the cpu temps under load are max 58C so i believe this is fine.
thanks for your help so far! appreceate it!
 

Locopatre

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thank you!
the rear fan slot is just 80mm, i have these aftermarket fans:
-spire fan blower 120, 1500rpm, 65cfm, side)
-Arctic Cooling ARCTIC F12 , 1300rpm, 73cfm , front)
the cpu cooler is just an stock intel cooler, the cpu temps under load are max 58C so i believe this is fine.
thanks for your help so far! appreceate it!
 

CGurrell

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No problem :) If you post on a forum, you want answers right? :)

Anyway back to the problem, could you by any chance take a pic of the inside of your case for me? Just so I can have a look at the setup :) (Don't worry if it's messy lol)
 

Locopatre

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152kc4o.jpg

here is a picture which should give u an idea
 

Locopatre

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There is a spot for another 120mm fan just slightly above the sidefan that is installed. But im scared that this wont help because i pointed one bigass housefan on the GPU's and the temps just changed by 2-4degrees.
 

CGurrell

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Could you use a lower PCI-E slot for the 2nd GPU? Or is that the furthest you can get it from the 1st GPU?
 

CGurrell

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Locopatre, make sure to do this. Dust in the GPU Heatsink will cause rising temperatures, cleaning them out may get your temps down by around 5 degrees, maybe more
 

Locopatre

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I can use the lower, but the lowest is not an PCIe 3.0 x16, it just a PCI x4 slot or something like that...
But the problem is not the two cars i think, because even with 1 gpu inside it gets hot...

Edit: The gpu's look really clean... almost no dust on them
again thanks for your help
 

Locopatre

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Nono the fans are brandnew, but i dont like the idea of having a system running so hot... i wanna be able to sit back and relax while my pc is on haha... and what do you think about the crossfire?... 98c

 

CGurrell

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Loco try using the bottom PCI-E slot, then check temps again. The extra clearance should give you some lower temps. If the bottom slot is a PCI-E 3.0 x4 slot, you shouldn't experience any performance loss as this gives the same speeds as a PCI-e 2.0 x8 slot
 

Locopatre

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bro, i just first get good temps with one GPU, then my system is ready to use 2 GPU's...
So how can i lower the temps of my gpu...? because it is not airflow... this is strange to me


 

CGurrell

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85c when under load is ok. Your system doesn't have great airflow, I would probably recommend getting some Corsair AF120 Performance edition fans if you want better airflow in your system, maybe a noctua NF-R8 for the rear. For now though, just try the 2nd GPU in the lowest slot, just to see what the temps are like.