How to reduce Sapphire Radeon 7990 temp?

Mandingo_2013

Honorable
Nov 15, 2013
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Hello I have a 7990 that gets uber hot. When playing BF4 my 7990 gets up to 85C. I also notice that the game drops from 60+ fps to like 10-12fps. This makes my game unplayable. Trying to minimize the heat on this awesome card. I have a new cpu cooler coming in to reduce my cpu temps. But, right now my concern is this graphics card. I do have a well ventilated case. What would be my option to fix this problem? Just crack the case open on the side and have a room fan blow into that case? Water cooling? Re apply thermal paste?
 
Solution
I guess the factory don't know how to apply thermal paste. When I took the 7990 apart I was disgusted by how much thermal paste these retards put on this card. After cleaning off the thermal paste I applied arctic silver 5 thermal paste. Pea size amount just like you would for cpu on motherboard. Viola! The card is not only running cooler under load the fps in game don't drop anymore. Problem solved.
lol the room fan is certainly an option, you say your case of well ventilated but you might be able to do some swapping around with the case fans in order to direct more air onto the GPU itself, that should lower it by a good bit if you have some quality case fans, otherwise you may have to go with an after-market liquid solution.
 
Mine was getting up to 100C running burn in tests until I relocated the card as it was close too the PSU and a HDD enclosure. Now it runs at 80C. 85C doesn't sound too bad as I think they shut down at 102C. What kind of case are you running and where is the video card?
 
Cooler Master Storm Scout II Mid-Tower Gaming Case
AMD FX-8350
Cooler Master Seidon 120M Liquid Cooling System 120MM Radiator
16GB 2133mhz DDR3 G.SKILL Ripjaws X
Sapphire Radeon 7990
120 GB Kingston HyperX 3K SATA-III
3TB SATA-III HD
1,000 Watts - Cooler Master Silent Pro Gold 80 Plus Power Supply
GIGABYTE GA-990FXA-UD3 AMD 990FX
 
There is an option in Sapphire Trix to 'force consistent voltage', and I recall there is an option for crossfire as well.

Have you tried the latest beta drivers? There might be some optimizations for BF4 when crossfiring.
 
I guess the factory don't know how to apply thermal paste. When I took the 7990 apart I was disgusted by how much thermal paste these retards put on this card. After cleaning off the thermal paste I applied arctic silver 5 thermal paste. Pea size amount just like you would for cpu on motherboard. Viola! The card is not only running cooler under load the fps in game don't drop anymore. Problem solved.
 
Solution
Had the heat problem of the 7990 in my card too. Still looking towards better solutions, because fans at 100% are noisy. My temps rised past 90 °C like a rocket, before I shut the loading of the card. Now I'm running 76/75 °C per core full load:

-Changed thermal paste
-Added fans to the case (now 3 in, 3 out)
-underclocked the core above PSU (850/1200 Mhz)
-undervoltaged both cores
-forced constant voltage
-added heatsinks on the backplate of the card, mine got REALLY hot and that kind of thermal mass in my mind can heat up the whole card
-aggresive fan curve