hi all, i have recently aquired a tower with 1.8 ghz celeron i know it kinda sucks, but i am trying to get it going, but it posts funny. it is a emachines(i know it sucks) but i turn it on, get the emachines logo and the screen turns black and i also notice the cpu fan stops spinning. i have tried changing power supplies same thing happens. I even tried changing the ram out with new ones, same thing. You think it could be a the mobo or cpu??? i just don't wanna waste money trying to get this going, thanks to all in advance,.