Hi All, I picked up a PowerMac G4 MDD 1Ghz and 23inch Cinema HD both fully boxed in fantastic condition. A real prize! However... I cannot get this thing to boot up. When pressing either the mac power button or the display power button the mac spins into life for a few seconds and then goes off. Now, at first I assumed the battery was dead so after replacing it and resetting the PMU I have all sorts of weirdness At first it booted ok to the flashing folder (there is no disk in there yet) I fitted a new HDD. As before, it Does not boot Removed the HDD. Does not boot. Removed all external cables. Reset PMU again. Does not boot. Removed the ram modules. Boots Added one module at a time. Does not boot. Removed Graphics card. Does not boot Put it all back together. Boots Switch off and wait a few minutes for a second test. Does not boot. Now removed all components, including CPU. Cleaned every piece and refitted. Boots Connected HDD. Does not boot. Removed HDD. Does not boot. Seriously....WTF? Any thoughts from anyone?