Yes, you can definitely apply the paste to your card just make sure you dismantle the card safely, keep all parts intact, and safely remove the old thermal paste. And Best of luck

Nice score

Sry i did't read the 870m part. And laptops do not have a gpu fan. Maybe that's a problem. Are you using gpu tweak for laptop gpu's ?

:eek: Try different software to test fan speed. If there is same problem then may be you have problem with sensors. But it is not much to worry about.

I got a 760 and Win 8.1 64-bit driver works fine with 10