Some questions about logic board and thermal paste - MBP 13" A1278 i5

[yemoja]

Hello, this is my firt time opened any/my mbp, am not expert, just curious and have some questions about the logic board and thermal paste.

The model

I was checking the tutorial from ifixit and cant find information about those components on circle symbols. Heat sink tutorial say only about the green symbol, i think it's the processor ? And how about the others, they have a protect case, which i got no lucky to remove them - got one striped screw -, so i dont know if they came with thermal paste and if need to replace too.

Questions

What is those components with circle symbols, they need thermal paste?

There is any manual to know what is each component on this logic board A1278?

The protect cape from circle symbols have the same screw as keyboard ? For replace.

For this kind of striped screw - really small - what is the recommend way to removed it?

Thanks all o/


Just for who will open someday your mbp and is checking this, please, dont buy poor tools and have sure to the model of the screw you need to remove, before buying your replace components, make sure to have a nice tool set.

 

[deadworlds]

Could you post a photo of each chip? Its very hard to see of there are any markings on the chips in the photo you posted.

 

[yemoja]

@deadworlds, sure, but i can only show the chip marked with a triangle. The others i cant remove the protect case

If there is some code or another model number i can put here to you know exactly what is my logic board, just tell me, the first picture was from internet, its not mine but the design and components tend to be the same.

Srry for the quality, my cel cant do macro.

 

[_Kiki_]

green triangle - CPU
blue circle - Platform Controller Hub (PCH) with integrated graphics
red circle - Thunderbolt Chip
all marked chips needs thermal paste, main heatsink is going for CPU, small is for PCH and Thunderbolt Chip
screws are different, they are specials screws suitable only for main heatsink and different (small size) for small heatsink, use only suitable screws to avoid long screw damage

recommended screwdrivers Wera, Wiha or Vessel, they have nice sets
thermal paste, I can recommended Grizzly Kryonaut

 

[yemoja]

@_Kiki_ Thank you!

Well, I got a really problem, as i sayed, only one screw on PCH and Thunderbolt Chip is striped, so i cant replace thermal by now, do u think it's a big problem replace only the CPU paste and keep the old (7 years ) paste on others chips ?

About the striped screw, it is to small, i tried some techniques but with no success. The two methods i didnt try yet, cause i got no skill and tools, are drill and sordering, do you recommend any else?

This is how my problem looks like

and this is to compare a PCH/Thunderbolt chip screw (philips) with a commum screw from bottom of macbook pro. Do you think it's the same

In future, if i removed with sucess the screw, do you think this is the same ?
The thermal paste i already bought a arctict mx-4, but thanks for the recommended!

 

[_Kiki_]

fans screws are different than heatsink screws, there is not much heat generated by PCH or TB chip, so if you can't remove last screw, it's not worth to take a risk