On Mar 22, 2006, at 8:20 PM, nagable at comcast.net wrote: > I got the firmware upgraded, installed the processor (Sonnet Duet > 1.8GHz), and the computer (QuickSilver 2002, 800MHz originally, > 1Gig RAM) starts off like a shot. Runs really fast for about 5 > minutes, then freezes. I think it's overheating. The heat sink has > dual fans mounted on it, but there's no place to plug them in. I > had a similar overheating problem with a Snow iMac a few years back. I took a look at the manual. It's not clear from the pictures, but it looks like the CPU Fans are wired to the CPU board - yes? Did you remember to hook the case fan back up? You should be able to run the system with the case open long enough to see if all the fans are running without hurting anything. Phil Robar -- "The tragedy of our day is the climate of fear in which we live and fear breeds repression. Too often, sinister threats to the Bill of Rights, to freedom of the mind are concealed under the patriotic cloak..." ... "It's far easier to fight for principles than to live up to them." - Adlai Stevenson