Replacing processor issue

Discussion in 'PowerPC Macs' started by applegear, Feb 9, 2013.

  1. applegear macrumors newbie

    Joined:
    Jan 15, 2013
    #1
    I have a dualcore 2.5 which had issues of processor overheating.
    I have purchased a replacement processor and heatsink.
    I have installed it and now it does not power on at all. It makes the clicking sound when plugging in the power chord. Any ideas why no power?
     
  2. CptSky macrumors regular

    Joined:
    Feb 1, 2013
    #2
    Maybe the processor is not correctly placed. It's hard to say...

    Btw. You'll have to make a thermal calibration using the Apple Service Diagnostic (ASD) as you changed one CPU.
     
  3. MisterKeeks macrumors 68000

    MisterKeeks

    Joined:
    Nov 15, 2012
    #3
    Check for any coolant that might have gotten into the power supply.
     
  4. applegear, Feb 9, 2013
    Last edited: Feb 9, 2013

    applegear thread starter macrumors newbie

    Joined:
    Jan 15, 2013
    #4
    I have the cd for thermal calibration.
    There are no leaks.
    I placed the old processor back in and same issue.
    Was powering on before installing new processor.
    I think maybe needs to be exact positioning to enable power, cannot see what else would have caused it.

    Edit: Problem solved, as well as placing in, needed to be hard pushed into place to connect.
     
  5. applegear, Feb 9, 2013
    Last edited: Feb 9, 2013

    applegear thread starter macrumors newbie

    Joined:
    Jan 15, 2013
    #5
    Well now it powers on and does nothing, no image on screen, doesn't sound like the fans or processor are doing anything. Should I give up?!
    One thing I've noticed is power light does not stay on.
     
  6. MisterKeeks macrumors 68000

    MisterKeeks

    Joined:
    Nov 15, 2012
    #6
    Is there Red light on MOBO.
     
  7. applegear thread starter macrumors newbie

    Joined:
    Jan 15, 2013
    #7
    No red light.
    Just to explain situation, I posted previous about this mac cutting out after few minutes of working, istat showed overheating processor, considered non-working cooling system.
    Purchased new processor, cooling, heatsink.
    So, as far as seller concerned, is working processor etc..
    It booted up before but shut down after few minutes due to overheating.
    So if we assume the new processor and heat sink ok, what else could be the problem?
     
  8. StUPoT macrumors member

    Joined:
    May 23, 2011
    #8
    I had this problem with mine and through many different methods I discovered that swapping CPU's about and putting them in different slots and calibrating them finally sorted it all out.
     

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