A friend gave me one of these, said he didn't test it. i tested it but have observed the following: ring on PSU plug illuminates fine, was orange but now greed thus battery charges ok. battery button works too, pressing that initially showed 1 dot, now shows 4. charge ok and accepted. pressing the power button though, i hear the fan spin for 1 sec, the disk and the cd drive click in, but no chime and nothing on the display. no response nothing, a hard reset (hold power) turns it off. I did the PMU reset, and the pmu did do a reset, but nothing. I also did the PRAM, and again nothing. I am suspecting a faulty logic board, I hope i can get this going as aesthetically it's in good condition. For the info it appears to be an iBook G3 model A1007, If you need any more info then give me a shout.