overcurrent in a computersystem can/will have huge implications as it can burn alot of supportchips :-o :pissed:
as it sounds like the memory simm has drawned alot of current.
btw: did you make sure that the simm did not touch the metalshield? because there is about -110v in the gound, to shield the computer. Alot of bad things can happen if any part of the computer i shorted with the metalshield, trust me :-o