hi everybody, i have a powermac g5 dual 2.0 ghz, and it has a couple of things wrong with it. a while ago i replaced the thermal paste on the cpu's because it was getting crazy hot. after that, the fan from cpu a gets really loud when i'm doing something. but the cpu b fan doesn't. and i lived with it for a while, but it recently refused to boot up, saying that there is no ram detected. i have tried various ram sticks, in all of the slots, but nothing has worked. could easely buy another powermac g5, but i would like to save this one since it is the first mac i have ever owned. and for anyone who's going to suggest buying a mac pro, i don't have the money. does anyone know how i can fix it?