Longevity of Coolaboratory Pro under IHS

[Omar F1]

I'm struggling to decide whether to use CL-Pro between the IHS & the core of 6700K.
I saw online some impressive results, however I also read some daunting reports about longevity of CL products (both ultra & Pro).

Any user experience here? have you used CL for a couple of years while it maintained it's consistency?


I'm looking for at least two-years out of that application, where I won't be touching the heat sink again, nevertheless to reapply TIM under the IHS.

 

[DrMrLordX]

I have been using CLU between the IHS and die on my A10-7700k since . . . December 2014? Once I got the application right, it was (and still is) working nicely.

 

[PPB]

I have been using CLU between the IHS and die on my A10-7700k since . . . December 2014? Once I got the application right, it was (and still is) working nicely.

What would be the considerations laying in the "getting the application right"? Because I'm interested in delidding my 4790K and CLU is one of my prime candidates for the TIM replacement.

 

[DrMrLordX]

I had some problems getting it right since I assumed the appropriate amount would be the same as the amount I use between the IHS and HSF (I use it there too). In those circumstances, I paint on a tiny amount with a paintbrush. That netted me high temps and lots of throttling when I tried it between the die and IHS.

Once I read IDC's 3770k delid thread and his experiences with delid/relid and CLU, I tried a much larger amount and found success. It probably has something to do with deformities of the underside on the IHS, or something.

The delid/relid bought me 200mhz in headroom and got me to 4.7 GHz . . . once I put on enough CLU.

 

[Omar F1]

Interesting. From your experience and many others I read so far, I can conclude that the least amount of TIM should used. However, when both surfaces aren't 100%, heat transfer might become an issue by using either CLU or CLP.

Anyway, after reading dozens of threads I've decided to go with CLP. I'd report within few years about that application and it's durability.

 

[DrMrLordX]

Good luck. Overall, CLU works better. You just have to get the amount right. Once you do, it's about the best TIM you can use for relid applications. No pump-out, and it brings you pretty close to what you can expect from a soldered IHS.

 

[ehume]

What would be the considerations laying in the "getting the application right"? Because I'm interested in delidding my 4790K and CLU is one of my prime candidates for the TIM replacement.

You have a Devils Canyon, not an original Haswell. Where a 4770k would benefit from relidding, I am not sure that it would help a 4790k, since that one has improved TIM. Ought to ask around first.