Issue:
It's more of a mess not an issue.
I have had my laptop for 3 years, And reapplied thermal paste 3 times using Xigmatic Thermal Killer S (cheap ik but it does the job. As I guess?!
Note that:
For some reason, I have the legion 5P's (2020) not pro) cooling system module.
This module has the heatsink and fans all as one piece.
Yesterday, I was deep cleaning my laptop + reapplying thermal paste. and it went like this:
I deep cleaned the fans for the 1st time.
I opened the fans plates which are held together by like.. some holes on one of them and pins on the other one.
After cleaning and putting them back, they don't fit well and not as rigid as before.
Then, On removing the heat sink, One screw got stripped (no. 2)
Opened it, I found I had spilled paste around both chips( cpu & gpu ).
I tried cleaning it patiently and gently but it was in vain.
Then I reapplyed the paste, put the heatsink back.
While doing so, I couldn't tighten the 2nd screw as tight as it should be.
and almost had a heart attack hearing some cracky sound while fastening the 6th screw. (I thought it went into the motherboard)
Then I found it was the screw spring was causing these sounds.
I put everything back and thought the job was done.( at least for few weeks until I finish my exams)
I booted it up and ran stress tests using Lenovo Diagnostic Tool.
The cpu had some nice temps that I've never seen before.
The gpu also had temps that I've never seen before, but those were not nice at all.
The gpu was doin solid 92°c during the whole test.
Then I tried running some less intensive test (Games)
The temp went to 92°c fast Af, In a game that never caused the gpu to cross 55 MAX !!
I opened everything again and found that the gpu chip wasn't even touching the heat sink (No marks of the paste on the heat sink side)