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Intel imac 20" (early 2006)

Discussion in 'Apple Hardware' started by dazza13, 10 Sep 2009.

  1. dazza13

    Hitman

    Joined: 26 Nov 2004

    Posts: 939

    Location: Carshalton, Surrey

    I just got one of these from a friend for £100, it has a fault where it keeps switching it self off, and then won't turn back on for anything upto 2 hours.

    Any ideas what might be causing this, I would suspect it was power related?

    Also any one know a decent website for mac spares.
     
  2. pingwing

    Capodecina

    Joined: 9 Apr 2008

    Posts: 19,548

    Location: Bedford

    Sounds like its overheating....

    Never owned a an imac though, just sounds like the symptoms of overheating like a mad man. Open it up and give it a clean (or replace the fans if they arnt working)
     
  3. FreeStream

    Capodecina

    Joined: 10 Apr 2004

    Posts: 13,345

    How long after turning it on does it switch off?

    Core Duo 2Ghz from the specs.

    Its almost worth taking to an Apple Store...
     
  4. dazza13

    Hitman

    Joined: 26 Nov 2004

    Posts: 939

    Location: Carshalton, Surrey

    It varies it can stay on for several hours or goes of within 20 mins, and this is from being first started.

    An example is yesterday i had it running for 3 hours playing an episode of top gear on repeat no problems, switched it off came back 10 mins later it wouldn't switch on.

    The day before turned in first thing in the morning, just left it sat at login screen and it turned it self off after 20 mins and I had to wait an hour before it would come back on.

    If I reset the SMC it comes back quicker but then i have the problem of the fans stuck running at full tilt so have to do the smc reset again and some times it works other times I have to wait ages again before it will turn back on.
     
  5. FreeStream

    Capodecina

    Joined: 10 Apr 2004

    Posts: 13,345

    Hmmmm.

    I think its power related...

    Go to Macrumors.com and post there, should get more help!
     
  6. Feek

    Commissario

    Joined: 16 Oct 2002

    Posts: 230,211

    Location: In the radio shack

    Sounds very similar to the fault I had on my Mac Pro. If it was a warm day and I turned it off, I couldn't turn in back on straight away.

    The PSU was replaced. From my monitoring of the temperatures, the old PSU was overheating.
     
  7. dazza13

    Hitman

    Joined: 26 Nov 2004

    Posts: 939

    Location: Carshalton, Surrey

    Yes I have been doing a lot of reading about and it all points to the power supply being faulty.

    I have found a site that sells mac spares and have ordered a new one, should arrive today and will fit it over the weekend. hopefully that will fix the issue.