Skip navigation

PowerMac G4 MDD sometimes won't start, fans run full speed

1019 Views 6 Replies Latest reply: May 6, 2012 11:00 PM by Agent 24 RSS
Agent 24 Level 1 Level 1 (0 points)
Currently Being Moderated
May 21, 2011 4:31 PM

I was recently given a PowerMac G4 MDD but am having a problem with it.

 

Sometimes it will start and boot OK but other times it will do nothing, no chime, nothing on the screen and after a few seconds the fans (or a fan) appears to start running at full speed.

 

Turning it off and back on usually makes it work.

 

 

I have checked the PRAM battery which seems good at 2.67v, and then I tried resetting the PMU as suggested on the forum somewhere but that didn't help either.

 

 

Normally being a Windows\PC person I am not really sure what to do next. I get the impression it's a hardware problem but not sure what.

 

Hopefully someone else will recognise these symptoms and can help me!

PowerMac, Mac OS X (10.4.11), PowerPC G4 MDD (M8570) Dual 867 Mhz

Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Legend

  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.