So I’m working on my nephews CECHK01 80gb, more times than not it will run for a min or two then do the dreaded double beep and power down and the red light blicks.. From what he’s told me you can some times keep trying and it will run for hours with no problems.. So I cleaned it completely out and replaced the thermal paste and it didn’t change anything.. So I replaced the power supply after some google research and it also changed nothing.. Am I missing a step somewhere or is it just got multiple things wrong and it’s done for? Would love to get it going for him again but I’m at a loss, thanks..