Skip navigation

PowerPC G5 1.6GHz not starting up..please help!

2088 Views 46 Replies Latest reply: Mar 24, 2014 11:47 AM by BDAqua RSS
  • BDAqua Level 10 Level 10 (114,800 points)

    OK, good luck with it, please keep us posted on any outcome.

  • BDAqua Level 10 Level 10 (114,800 points)

    Sorry, I'm nearly deaf, I heard the bong but nothing else.


    With the side cover off but the deflector in place, is there still an LED lit?


    How many seconds into the video do you hear sounds?

  • BDAqua Level 10 Level 10 (114,800 points)
    Currently Being Moderated
    Jan 20, 2014 11:08 AM (in response to Adam Simpson5)

    As I understand it no led lit on the Logic board is a PSU problem, thought it indicated 5 VDC trickle voltage available.


    Here's some more info on G5 PSU voltage values:


  • BDAqua Level 10 Level 10 (114,800 points)

    Do you have another Mac with Firewire around?

  • Bruce762 Calculating status...
    Currently Being Moderated
    Jan 23, 2014 10:18 AM (in response to Adam Simpson5)

    Hi Adam. I have exactly the same problem with my 2005 Power PC G5, dual 2.7. The red light that comes on inside when the plastic cover is removed is a warning that the cover is off - put the cover in place and the light goes off. I have tried everything that BDAqua has mentioned (many thanks to him). I am interested in his comment about a FireWire Mac as I have a Mac Mini. Would be interested in knowing what this involves.

  • BDAqua Level 10 Level 10 (114,800 points)
    Currently Being Moderated
    Jan 23, 2014 1:05 PM (in response to Bruce762)

    Well, no idea if this will work with the state your G5 is in, but if you can connect the two with a Firewore cable, then try booting the g5 with the t key held down & see if the G5 shows up as a FW drive on the Mini... if so we might learn something from looking at the system log or crash logs on the G5.


    FireWire target disk mode...


  • Bruce762 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jan 24, 2014 2:24 AM (in response to BDAqua)

    Before I try the FireWire method, a quick summary of my setup. The Mac Mini was networked to the G5 via my BT Infinity router and worked fine; the two drives in the G5 we're accessible from the Mac Mini. When the G5 turned itself off suddenly (as though the power had been suddenly switched off) all communication with the keyboard, mouse, monitor and Mac Mini ceased, so without an operational keyboard, I think I am stuffed! The best I can do now, I think, is to remove the two drives and put them in USB hard drive enclosures so I can access all of my stuff, which is backed up on a separate FireWire drive and the Mac Mini, of course. Pity that I will loose the Classic environment (AppleWorks, and all of that) but I do have two OS 8.5 and OS 9 PowerBooks that I can use, as well as a B&W G3, so not too bad. Time to move on, I think.

    Thank you very much for your help, and I am sure Adam Simpson feels the same.

  • BDAqua Level 10 Level 10 (114,800 points)
    Currently Being Moderated
    Jan 24, 2014 12:12 PM (in response to Bruce762)

    The best I can do now, I think, is to remove the two drives and put them in USB hard drive enclosures so I can access all of my stuff...

    Yes, good idea.

  • Bruce762 Level 1 Level 1 (0 points)

    Bellow Adam

    I installed the two hard drives from my G5 into USB 3 enclosures yesterday and they both opened up on my late 2013 Mac Mini straight away. So I have access to all of my old files, although most of the applications won't work as they are for Power PC Macs and won't work on Intel ones. That is not really a problem apart from AppleWorks files earlier than AppleWorks 6 (which Pages and Numbers open, although not the Drawing and Painting files). However, I do have an old clamshell G3 iBook with AppleWorks 6 installed so I can convert any AppleWorks 5 or 4 files that I may need.

    Removing the drives from the G5 is easy; they basically just pull out after the connectors have been removed - they can be a bit stiff, so need a good tug. Full instructions are in the manual that came with The computer. Fitting the drive(s) into enclosures is easy also; they just slide in after the mounting screws on the sides of the drive have been removed - again they can be hard to remove, so make sure you use a good screwdriver. I used black aluminium Cit enclosures from Amazon, which are USB 3 and come complete with a very substantial USB 3 cable, a power module and even a screwdriver for the little mounting screws. They come with little stands so that the unit can be mounted vertically, but I left these off and just placed the two flat, side by side. I have put some little neoprene studs on the bottom to keep them in place and also to dampen vibrations. The enclosures were only £15 each.

    I will be interested to hear how you get on with your G5 - my local Apple repairer advised me that parts were no longer available, so that's why I have decided to rescue the hard drives.


More Like This

  • Retrieving data ...

Bookmarked By (0)

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.