My PC only run with case in vertical position. Do I need change my motherboard? - Need Advice

jefdetor

Honorable
Oct 31, 2013
16
0
10,510
Hi tom's hardware guys. Now I got this problem:
My computer just doesn't run with case in vertical position. If I put this horizontal everything works.
I did clean my Motherboard and other components trying to fix this, nothing works, only this horizontaly.

What I have to do? Do I need a new motherboard?