Hello, I've got my hands on a PowerPC G4 Cube (PowerMac5,1: G4 450MHz / 1Go RAM / running MOX 10.4.11) that has random shutdown/sleep problem: computer goes to sleep every 3 minutes or less. It looks like both : - a PSU connector issue: sometimes, if I touch the PSU plug when the computer is running, it goes to sleep or reboot - an unstable something-I-can't-determine-what-it-is: the computer goes to sleep without anything have moved (psu, cable, table, etc.) or been clicked (mouse, keyboard). I tried to reset the CUDA/PMU: didn't changed anything. When the Cube was opened I noticed that a resistor was soldered on a chip as can be seen on the following image: I can't find what possible hack this resistor is related to. Would somebody have an idea?