Originally Posted by 0S1R1S
Hey guys, I thought I would mention some results I had after switching Thermal compounds on my 770 SC ACX. After a whole evening of benchmarking, my max was 82C+, but 77-78C was the average with an OC. Even with custom fan curves set. It felt a little high no matter what I did. Idle was at 47-48C (OC).
So I decided to take a look at the pre-applied thermal compound. Much like some of the pictures I've seen here and on the web, the pre-applied job is messy. It took awhile to clean off all the old junk, but I ended up applying a nice smooth coat of Antec Formula 7, and my max temps have gone down 7-10C at load and 1-2C at idle with the OC.
I ran Heaven, Valley, and 3DMark multiple times on extreme settings. The card is at stock voltage running 1267MHz clock, and 4001MHz memory clock, and HWMonitor never recorded above 71C, with idle temps around 42-46C. 36C idle at default settings - no OC or Kboost enabled.
The only way I seen comparable temps to what I was getting before was by using EVGA's burn in test. After running for 5 minutes I still only hit 77C, I was getting in the 80's with the burner before. Other than that, it looks like temps are down all around.
I read a few peoples temps on CPU's using Formula7 decrease even more over about a week's time of applying it. So I will report back in a few days to see if anything changes. If you have any good TIM laying around, it might be worth checking out the factory job if you are having any kind of heat issues. Mine was a mess, and this helped out a substantial amount.
Thanks for your input mate!
Well my room temps are about 28'C and it's summer, so that might be adding to the temps. However, I do suspect a bad paste job, and I'm thinking reapplying some paste might help - just as it helped you.
I don't know about Antec Formula 7, but I have some Arctic MX-4. Someone recommended CoolLaboratory Liquid Pro or Ultra, but I think my MX-4 will be ok right?
I guess I'll have a go in a few hours and see how this turns out. I haven't done any benchmarking with the GPU, but I'll be able to tell if the temps go down.