Radeon HD 6990 Thermal compound

death12337 · Sep 28, 2014

Hi guys, I have a XFX Radeon HD 6990 which runs at these temps

Idle: 45-52 C
Load: 86 C
Standard profile, so the fan only comes on at around 85-90 C up to 50+% otherwise it's quiet.

I've bought Arctic Cooling MX-2 thermal paste, and wanna switch out the stock one, since it's helped on other GPU's I've had,
however research shows that AMD says the 6990 has some special compound, which MX-2 probably can't beat anyways?

Should I do it? Will it have a positive or negative effect? Anyone tried?

ThatVietGuy · Sep 28, 2014

Can you link to this research? This is news to me.

I'd just go ahead and try it.

But instead of re-doing the thermal paste, I would do an aftermarket cooler, but that's just me.

death12337 · Sep 29, 2014

ThatVietGuy :

"Even the thermal paste connecting the GPUs to the vapor chambers has been changed for the 6990 – AMD has replaced traditional paste with a phase change material. Phase change materials – pastes/pads of material that melt and solidify based on temperature are nothing new, however they’re still exotic; material similar to what AMD is using is not readily available as paste is. AMD even went so far as to suggest that reviewers not directly disassemble their 6990s as it would require a new application of phase change paste in order to achieve the same efficiency as the original material. The net result of all of this by AMD’s numbers is that the phase change material is 8% better than the regular paste they’ve been using."

http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/41404-amd-radeon-hd-6990-4gb-review-6.html

Edit: Anyone????
Comments?? Experiences?? tests?? Any Radeon owners??

death12337 · Nov 16, 2014

I replaced it, it helped to get a more even and a bit lower temps on the 6990. Definite GO.

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