820-3115-B Graphic Distortion when pressure is applied on bottom of board

[theodore]

In the past few years I have come across a couple different 820-3115-B 13" 2012 Unibody MacBook Pros that have an interesting issue, The system will function just fine and pass all standard Apple Tests however when pressure is applied to the bottom of the logic board right under where the CPU is attached the screen becomes distorted and the system Crashes/Glitches and becomes unstable. Is this possibly due to bad solder points on the bottom of the CPU? Has anyone run into this problem and can shed some light on this issue?

 

[SMMRepair]

Bad CPU-side ("bottom") RAM slot. Common on that model board. Leave bottom slot empty and max-out the top slot. Not really (economically) repairable.

 

[dukefawks]

If the RAM slot trick does not help the board is trash, there is no fix for this.

 

[theodore]

Thanks for the tip, Looks as if this was indeed the issue. Now from what I have seen on this forum this issue is not repairable correct?

 

[SMMRepair]

I mean, it's certainly repairable (with the proper equipment and know-how, and several hours of work), but not worth the time/effort. Just use the top slot and save yourself the trouble.