Hello forum, I'm sooo sad. Problem: Power Mac G5, 2 GHz, Dual, OSX 10, bought in summer 2004, no modifications, brandnew. It has been working fine for the first 100 hours. Now I either can't boot anymore or it crashes at random 10 to 30 seconds after boot up. I'm not touching anything. No mouse movement, no keypress. It just suddenly darkens the screen and says: System failure: cpu=1; code=1 () Latest crash info for cpu 1: Exception state (sv=0x1DF91500) (etc. ...) Sidenote: When it was happening the very first time, the cooling fans were slowly accelerating to max speed, although the exhausted air was cold as a fish (the high fan speed was probably just a side effect of a certain safety automation. -- Just a sidenote; no problem really). The status LED on the Mac blinks 3 times every few seconds. The handbook says for 3 blinks: "no compatible memory installed". Now I'm not sure if it's a CPU failure or a memory failure ... or anything else. Can I fix it myself by replacing one of the two CPUs or some memory cards? Will this lead to warranty problems? Or is it technically too risky? (I'm an electrical technician). Any comments would be greatly appreciated. Thank you!