Results 1 to 3 of 3
  1. #1

    Member Since
    Dec 13, 2009
    MacBook Air mid-2013 4GB, and other machines
    So, is it my power supply?
    My "machine suddenly goes black sometimes with a pop noise" saga continues.

    I have succeeded in lowering the internal temperatures.

    But sometimes there is still a random shutdown, sometimes immediately after the power button lights and sometimes after hours or days.

    Opened the machine, plugged it in. LED1 lights up. PRessed the startup button on the board inside the machine. LED2 lit up...but after a minute or so, I heard the same soft "pop" and all the fans stopped and LED2 went black.

    From iMac G5: Troubleshooting when your computer won't turn on I would then tend the think the logic board should be OK, and this is a power supply issue?

    I'm REALLY leery of spending money to fix one issue, then have other issues, and end up spending half what a new refurb would cost-or worse, not even fixing the issue. I've also read that heat can kill RAM, and I was running CPU temps up near 70C before, probably for some months at least.

  2. #2

    robduckyworth's Avatar
    Member Since
    Jan 04, 2011
    Reading, UK
    15" MBP, 2.5GHz i7, 750GB, 6770M 1GB, iPad 3, iPhone 4, custom PC
    that sounds a lot like a power supply issue to me. if everything just dies with a pop.
    If you find a post helpful, don't forget to use the reputation system (top right of post.)
    Join us in the IRC! How? Add me on Steam, Origin or PSN (Vita): robduckyworth

  3. #3

    John T's Avatar
    Member Since
    Nov 06, 2010
    21.5in iMac
    My G5 did exactly the same. Checked the PSU and it seemed to be working ok. Took machine to local Apple Service Center and after running diagnostics they found the trouble was with the logic board. Had that replaced and the machine ran for another 12 months before it died and was sent to the computer graveyard in the sky!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Power Mac g5 power supply fan size??
    By Familyguy9877 in forum Apple Desktops
    Replies: 8
    Last Post: 12-27-2012, 10:08 PM
  2. Power Mac G5 450W or 600W power supply?
    By K.C. in forum Apple Desktops
    Replies: 4
    Last Post: 01-18-2012, 04:46 PM
  3. Question about power supply for Power Mac G5
    By Puzant in forum Apple Desktops
    Replies: 2
    Last Post: 05-02-2010, 10:46 AM
  4. Replies: 4
    Last Post: 05-03-2009, 09:09 PM
  5. Replacing Power Mac G5 Power Supply Unit
    By karl hurrell in forum Apple Desktops
    Replies: 0
    Last Post: 11-04-2007, 03:54 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts