Hi! I just got my early 2005 G5 out from storage only to find it unbootable. It turns on with the fans spinning and i can even hear the harddisk spinning up but no chime and the screen stays black. I first tried to re-seat the graphics-card...Nothing changed. Then i measured the PRAM battery...dead. So i changed it for a new one and even reseted the PMU. Nothing changed. I also tried without the graphics-card, then without PRAM battery, then without RAM. I read through many forum posts and i began to disconnect the harddisk and even the two sata cables from the Motherboard. I also disconnnected the optical drive. I don't have any AGP graphics-card to try as i don't think i can try the ATI RADEON 9000 from my G4 MDD as it doesn't seem to fit. AGP PRO port i guess isn't compatible. Are any AGP 8x card compatible for my G5 2.7Ghz? Next thing i will check are if all voltages on the main Power connector are present.