Help with Repasting CPU

troyuuut

Prominent
Jan 7, 2018
1
0
510
Hi everyone,

So I am trying to clean the thermal paste off my CPU. I managed to clean the majority of the paste off the CPU but there is a bit left on an area I can’t get off.

CPU:
2jcixqp.jpg



Zoomed in:
f9o7ic.png



Does it matter if I leave any thermal paste on that area? Are those pins or something?

Also while cleaning the thermal paste for the copper heatsink I noticed a black padding on the underside like a sticker of sorts.

Here’s the picture:
2mfck5h.jpg



Zoomed in on slight tear:
2mre4g7.jpg



What is that suppose to be? I ended up tearing it a little on the corner as seen in the above picture, when trying to clean off the thermal paste so was wondering if that was going to affect anything?