Green spooch on CPU?

[PCTweaker5]

I just took off my HSF and noticed that my CPU barely had any AS5 after about 2 months after a fresh coat. When I rubbed off the old goo I noticed that there was quite a bit of green stuff in it and was just wondering what this was. Is it from the heatsink being copper, the AS5 changing colors, or the CPU getting melted slowly?

 

[Gurck]

oxidized copper is green... not sure that's what happened in your case, just mentioning it. light green btw.

 

[myocardia]

Hahaha, your cpu is melting! Your cpu is melting! Oh wait, that would require ~1800-2000°F. I'm going to give you credit for that being synicism. And Gurck is right, it's just because you have a copper hsf, or an hsf with a copper insert, anyway. It WAS funny, though!

 

[PCTweaker5]

Ya I knew to say it was melting was stupid since it runs under 35C on load but I meant like corroding or something.