My PowerMAC G5 2,3GHz has a similar problem at moment. After getting warm, he won't boot anymore - no chime to hear. Turning off for some minutes and he will start normal. When once started, there are no further issues - it works till it will turned off or a reboot is needed. AppleDiagnocticCD does'nt find any problem.

I found out, that this has something to do with CPU-module. Changeing them solves the problem. So I dismounted both cpu-modules completely and found a damaged capacitor (beginns to run-out). I have now to purchase one and to change - then we will see whether this solves the problem.

On the picture you can see this capacitor (only one module is affected)

41547611ay.jpg


[ Editiert durch Amigaharry2 03.07.2021 - 21:17 ]