Non-start up

[Rhisiart]

My G4 PowerPC will not start up. I get a grey screen with the apple logo and that's it. No spinning gear.

I have removed everything except the apple mouse, keyboard and monitor connection.

I have tried starting up in Safe Mode and Single User Mode, neither of which work (i.e. I can't get into either of these modes).

I have reset the PRAM. No difference.

The CD draw will not open using the Open CD key on my keyboard.

I am now very stuck. Can anyone help please?

UPDATE: I have reset the CUDA/PMU. This has made no difference either. Could it be the battery simply needs replacing?

[Mr_Spencer]

Have you tried opening the CD drawer by holding down 'M' on start up?

[Rhisiart]

Unfortunately that doesn't work either.

Have you ever had one of those days where nothing seems to go right?

[fryke]

"M" for opening the CD drawer? First time I hear that one!! Is there any documentation on that? I just know holding dwn the mouse-button or the eject button...

[Rhisiart]

Probably a typo (but I was curious enough to try it).

Anyhow thanks Mr S. I appreciate anyone who tries to help.

[Mr_Spencer]

Must be my age. I'm sure I've used that in the past, but it's not working now. In fairness I did ask if Rhisiart had tried it, I made no mention of it working.
Is there a CD in there? Or do you need to get it open to insert a start-up disc? How about plugging in an external cd/dvd and trying to start up from that?

[Rhisiart]

Originally Posted by Mr_Spencer

How about plugging in an external cd/dvd and trying to start up from that?

Tried that too. I suspect the Power Management Unit may be damaged. However, I don't really know for sure.