Is ArcticSilver 5 good... ?

[biuro74]

Hi,

I'm wondering if ArcticSilver 5 thermal grease is good for *lapped* CPUs ?

I'm not asking if AS5 is good in general meaning (because it is one of the toppest compounds), but is it good for soft material like copper. Thing is I've bought AS5 some time ago and applied it to 3 CPUs: 2 of them has been lapped, and one - not. This not lapped one was fine, but rest of them - once heatshink has been detached, I've noticed each of CPUs has got very small hole @ IHS. Before mounting heatsink everything was OK - if you lap CPU you know how smooth is your IHS..

Strange thing is it happened twice - and always with lapped CPUs. Before AC5 I was using STG2 and haven't noticed any holes. My heatsink is AC Freezer Xtreme (lapped as well) and I've noticed no holes there. Second CPU has got plain Akasa cooler and no holes detected, too...

I know AS5 is about 99% of silver, what if my grease was chooped not enough which might cause lapped surface scratch ?

Have you seen something similar ?

 

[varkanoid]

I used AS5 on lapped coolers with copper plate before no problem

 

[Jokester]

What do you mean by holes?

Edit: Pitting?

Edit: Come to think of it, I'm sure I've come across this as well.

 

[Randomface74]

It's good but it's conductive, so if you mess it up you're screwed.

 

[biuro74]

What do you mean by holes?

Edit: Pitting?

Edit: Come to think of it, I'm sure I've come across this as well.

Pitting, like small grain embossed a hole in very fine surface..