Cool Labratoy Liquid Pro from SVC.com

[Lenny_Nero]

I thought they were designed to be concave and expand to flat when heated

Would have to be heated up a lot to see any deflection in the metal.

As for lapping both, if you only lap one surface and the other is not flat, there will be no benefit at all, might even make it worse, but then all of the stuff I lap (hone) is done one surface against the other, because the whole point is to make them fit together as best as possible.

[elgoog]

the ultra 120 base is nickel coated then copper underneath? (i know the actual heatsink is aluminum)



is it ok to use this stuff with an ultra 120?

[[XC] DragonOrta]

The entire heatsink is copper. You'll be just fine.

[Demo]

As for lapping both, if you only lap one surface and the other is not flat, there will be no benefit at all, might even make it worse.

QFT, I learned that the hard way. If you have no intentions to lap your CPU/GPU but want to lap your HS base triple check the CPU/GPU surface if its flat or the very least convex.. if it is uneven or concave dont bother with it anymore, altho you might get -2c from the max load theres a risk of getting a lot higher temps..

And the only way to fix this is lap the surface of the GPU/CPU also.