• Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
    Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.

Backside gpu cooling (AMD 7970)

S

SnafuPossum

n00b
Joined
Feb 23, 2012
Messages
45
In my quest to figure out how to cool down my gpu to keep its jet turbine from making my pc airborne I thought of something. Why not cool from the backside of the pcb? I did some research and found the thermalright hr-11 http://www.thermalright.com/new_a_page/product_page/vga/hr11/product_vga_cooler_hr11.htm . I read reviews and it did seem to help the temps a hair. So I went on my quest to do the same.

Found some old fans, looked up part numbers and found the one with the most cfm(~23) to use. A 60mm case fan looks like it could actually be rigged to bolt to the gpu's heatsink mounts but I personally do not want to go that far.

I used foam to space the fan off the backside of the graphics card with screws pushed through the foam for rigidity and placing electrical tape on the "feet" to keep from shorting anything out.

IMG_20120312_230528.jpg


Now time for the test. Idle test was at gpu fan speed 40% for about 10 minutes, load test was fan set to 60% running through full unigine benchmark. Also before I get to the test, in case you cant see from the pictures, I have my afterburner unofficialoverclock set to a value of 2 to keep max clocks.

No extra fan at idle
tempnofanidle.jpg


Extra fan at idle
tempwithfanidle.jpg


As you can see there isn't anything to brag about just a ~3 degree difference.

No extra fan at load
tempnofanload.jpg


Extra fan at load
tempwithfanload.jpg


This test shows a greater difference of ~7 degree difference!

I am sure with some fine tuning I can bring it to a double digit margin. :D
 
I miss the metal backplate AMD put on the 69x0's. Not sure why they didn't go with one on these cards (besides money :rolleyes:)
 
yeah idk why they choose such poor cooling solutions on such a expensive card.

Gaming update:
During gameplay I have the fan set to auto. Playing dirt 3 without extra fan the auto setting fluctuates between 55%-70% and spiking at 80% during intense moments. with extra fan it stays at a constant 50% with spikes up to 55%. This creates a much quieter gaming experience!
 
You must log in or register to reply here.
Back
Top