I don't really see where a component might have been pulled off... but then the pictures aren't that clear when zoomed in. Did you find the part itself? Can you get some close-zoomed pictures of that? from both sides?
What I do see are quite a few locations without components installed, but that's really quite common. MFR's frequently forego installing de-coupling capacitors when they can get away with it since they're not always needed.
Have you tried operating the GPU? Even if you have, it didn't work and you're just assuming one of the open locations is a missing component that may not be the cause. The more fragile thing is the solder balls on the bottom of the GPU chip. They can often crack when shocked and that's very possibly what happened in your case. Fixing that would mean reflowing the solder balls. Something do-able, probably with low odds of success but if it's a binner already so what? At any rate, it's not worth trying until you've exhausted everything else.