I can't tell since it's out of the case (it's some metal part out of place under the board in the case that would be the issue). At this point you'd have to test the board outside of the case if possible, setting it down on a safe surface like an anti-static bag and only connecting power and a video output (if it starts that is, to see if you get video). If you know which two pins start the board, as you seem to have identified you can just jump them with a metal object like a screwdriver (touch both pins at once to create a connection between them).
If there's a static charge on the board that re-seating the memory didn't resolve you can re-seat EVERYTHING including the CPU. If you get no power, try starting the board without the CPU just to see if you get any life at all. Unfortunately, it's hard to go further without other parts to test with (another compatible system to test your CPU in or another CPU to plug into your board, stuff like that).
Bottom line, there's only so far we can go online since I can't see what you're seeing. If you still have a problem, try taking it to a local computer shop for a more thorough examination.