Originally Posted By: ynotmit
...I only get the 3 light flashes on the monitor. ...The old MAC FixIt site use to have an answer years ago, I believe I heard about the 3 light flash before but to long ago.. Thanks....

Depending on the specific model G4 you have the three light flashes are described in this Apple Knowledge Base article or this one but in either case three flashes means no good RAM banks are found. shocked

I would start by opening up your G4 and removing and reinserting the DIMMs. You may simply be the victim of corrosion and removing and reinserting will often clear that up.

If we knew what it was we were doing, it wouldn't be called research, would it?

— Albert Einstein