When pc turned on, the image hangs on the logo of the motherboard with a certain (working) video card

[pridurok1337]

@pridurok1337 - where we at?

ok, I found another suitable motherboard and everything is working fine

[Bruce]

sounds like we were on the right track in post #4, and the different GPU’s lead us down a rabbit hole.

glad it’s sorted.
will close as solved.

[phillpower2]

sounds like we were on the right track in post #4,

The OP was in denial about the garbage PSUs and lack of free storage space on the HDD and as a consequence they hosed the original MBs BIOS as they described in their reply #30;

ah man, i tried playing around with bios versions and installed an older one and now it starts up with a completely black screen

They started off with a fully working computer and ended up with a dead MB for no reason whatsoever.