@Peskanova Also when removing the heatsink the cpu came off the socket. It went into the other mobo socket with no problem which means there were no bent pins. I didn't check for missing pins though. The PC seems to be working fine (Apart for some BSODs, I've got 2 so far but I think that has to do with the android emulator, haven't gotten any before I installed it yesterday). How probable is it that a pin came off the cpu and stayed in the socket in your opinion?
EDIT: WhoCrashed says the BSODs are most likely related to GPU drivers. There's probably something not perfect, I have installed CUDA toolkit and using the GPU for an emulator so that's probably quite normal. Those shouldn't be related to a hypothetic missing pin.
So with no crashes yet, would you say it's possible that the pc is working without a pin?