Shoutbox

I am working on a Computer for TylerG.  It is his old crap dell computer.  he had a thread about this a while back. here this the origianl thread about itSo i decided to change power supplies since that was a possible problem.  So i did and the problem seems even worse.  now I cant set it on its side and let it stay on, it seems to turn off faster.  is this a mobo problem or what?  there arnt any visible explosians and there were tooth pics holding the heat sinker in tighter since it was so loose.  the computer turns off after like a minute or 2 of it being on.  thanks.