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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1332

post #13311 of 38701
Thread Starter 
Quote:
Originally Posted by BradleyW View Post


Top card sucks hot air from the second GPU.

...and there lies the problem. 

Not the thermal paste, by the airflow. 

 

Instead of messing with the graphics card itself, try to see if you could redirect airflow to please both cards. 

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post #13312 of 38701
Quote:
Originally Posted by Evil Penguin View Post

...and there lies the problem. 
Not the thermal paste, by the airflow. 

Instead of messing with the graphics card itself, try to see if you could redirect airflow to please both cards. 

I have done everything I can to improve airflow with the side fan and air duct and adding a NF F12 fan at the end of the cards.
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post #13313 of 38701
Thread Starter 
Quote:
Originally Posted by BradleyW View Post


I have done everything I can to improve airflow with the side fan and air duct and adding a NF F12 fan at the end of the cards.

...and just to be sure you have switch both cards around to see if one card is generally hotter than the other (regardless of position)?

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post #13314 of 38701
Quote:
Originally Posted by Evil Penguin View Post

...and just to be sure you have switch both cards around to see if one card is generally hotter than the other (regardless of position)?

I tried running both cards on their own. They both hit 73c full load on auto fan so from this, I believe they run at the same temperature. I can't reduce the temps anymore with air no matter what fan configuration I try. Intale 200mm fan with the side pointing on the left side, with a 120mm fan at the end of the cards blowing air between them if the best I can do. That is why I'm looking at the thermal.
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post #13315 of 38701
Thread Starter 
Quote:
Originally Posted by BradleyW View Post


I tried running both cards on their own. They both hit 73c full load on auto fan so from this, I believe they run at the same temperature. I can't reduce the temps anymore with air no matter what fan configuration I try. Intale 200mm fan with the side pointing on the left side, with a 120mm fan at the end of the cards blowing air between them if the best I can do. That is why I'm looking at the thermal.

I would leave the TIM the way it is... 

I honestly think it could be made worse, especially with anything that uses thermal pads (RAM chips, VRM's). 

 

I'm no expert in airflow, perhaps other OCN members in the air cooling sub-forum could help you improve that. 

Otherwise, if the card behaves just fine and the only thing that concerns you is the temp of the top card... Simply put, it can take the higher temp. 

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post #13316 of 38701
Quote:
Originally Posted by Evil Penguin View Post

I would leave the TIM the way it is... 
I honestly think it could be made worse, especially with anything that uses thermal pads (RAM chips, VRM's). 

I'm no expert in airflow, perhaps other OCN members in the air cooling sub-forum could help you improve that. 
Otherwise, if the card behaves just fine and the only thing that concerns you is the temp of the top card... Simply put, it can take the higher temp. 

I understand it can take it, but now and again the fans can ramp up a bit too high for my liking. I'm not saying it is loud though. I tried making a forum in the air cooling section and all the suggestions increased my temps. My own config is the best config so far. btw, rep for your help so far.
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post #13317 of 38701
Thread Starter 
Quote:
Originally Posted by BradleyW View Post


I understand it can take it, but now and again the fans can ramp up a bit too high for my liking. I'm not saying it is loud though. I tried making a forum in the air cooling section and all the suggestions increased my temps. My own config is the best config so far. btw, rep for your help so far.

I guess that's just the way it is without resorting to a different cooler. 

I just want to stress that changing the TIM is not the way to go. 

 

Perhaps you have mentioned this already, but how far apart are the two cards? 

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post #13318 of 38701
Quote:
Originally Posted by Evil Penguin View Post

I guess that's just the way it is without resorting to a different cooler. 
I just want to stress that changing the TIM is not the way to go. 

Perhaps you have mentioned this already, but how far apart are the two cards? 

1 Slot.
I was thinking of the AC 3 slot cooler, but that in itself would suffer from a loss of air. (I had 2 580's with these big coolers lol)
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post #13319 of 38701
Thread Starter 
Quote:
Originally Posted by BradleyW View Post


1 Slot.
I was thinking of the AC 3 slot cooler, but that in itself would suffer from a loss of air. (I had 2 580's with these big coolers lol)

So the top card is connected to the blue PCI-E slot and the bottom card to the white PCI-E slot? 

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post #13320 of 38701
Quote:
Originally Posted by Evil Penguin View Post

So the top card is connected to the blue PCI-E slot and the bottom card to the white PCI-E slot? 

Yes. But if I was to use the black slot, I would have a big performance decrease.
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