Could be. I think it might be a good idea to recap the boards on both machines anyway, given their age. I'll probably hold off on those until after I recap my new XO.
Yeah, I think it may have given up the ghost for good. That's okay, though; I wanted to upgrade the hard drive anyway. I've been reading up on the CF solutions people have used, and I think I'll end up going that route. The less heat (and noise) being generated inside that case, the better.