"Burn marks" on cpu block

[Ewert]

So im cleaning my loop today for the first time and everything looks good.
But i thought that i should swap the thermalpaste and also see if i did it right the first time and find this "burnmark" ? on the block (the cpu looks fine) so i cleaned off the paste and the mark won't  come off.

thermalpaste used is Arctic MX-2, and i did clean the block before installing it.
temps have been fine (never over 60c i5 3570k at 4.2)

ideas?
should i just put the loop back together ?
 

 

[Willson94]

Think that's normal

[DudeWazap]

I think that's pretty normal.

[Freaky_spider]

use some  isopropylalcohol it and see if if it gets removed, looks to be some thermal paste thats stuck on it.

[Osmium]

use some  isopropylalcohol it and see if if it gets removed, looks to be some thermal paste thats stuck on it.

That totally was not copy pasted

[Ertman]

Looks like thermal paste residue.

[Freaky_spider]

That totally was not copy pasted

didnt know how to spell that and it had some weird font on it

couldnt bother to set it to normal font

[Osmium]

didnt know how to spell that and it had some weird font on it

couldnt bother to set it to normal font

 

Remove formatting button is your best friend

[Rashy]

isopropylalcohol it and see if if it gets removed, looks to be some thermal paste thats stuck on it.

thats a pretty decent solution

[Lord Pantaloons]

hit it with some iso. alcohol, I've never seen this on any of my heatsinks.

[Ewert]

Thanks!
Well then that seems easy  :lol: il do that and if it dosent burn or drown there will be pics later (somewhere on the site sneak sneak hides it in a corner. )

[canada2005]

It is probably just etching from the paste. Pretty normal. Clean the best you can, it will not effect performance.

[airdeano]

So im cleaning my loop today for the first time and everything looks good.

But i thought that i should swap the thermalpaste and also see if i did it right the first time and find this "burnmark" ? on the block (the cpu looks fine) so i cleaned off the paste and the mark won't  come off.

thermalpaste used is Arctic MX-2, and i did clean the block before installing it.

 

 

it is a stain from the reaction of the paste, cold plate material and the CPU IHS.

usually a vinegar bath and/or scotch-brite pad will remove the satin. also Brasso

compound might also do the trick without damage.

[Leonard]

That is normal as everyone has stated. You can use 90-100% isopropyl alcohol or lemon juice to remove it. You can also just re-apply your preferred TIM and continue using the block, performance is not affected. 

[juretrn]

You can also try super fine sandpaper if you're feeling perfectionist.