Problems with fan and power after hard drive upgrade.

Discussion in 'iMac' started by E-Tech, Sep 26, 2011.

  1. E-Tech macrumors member

    Joined:
    Mar 14, 2007
    #1
    Hi, just upgraded my 250gb hard drive to a Seagate 500gb Barracuda. I have been having some problems with the imac i get a kernel error to power off the unit and the fans are super loud I thought it was a bad power supply since all the LEDS are green. I swap it out and I still have the kernel error I tried resetting the memory thing by holding option, command and p r and still no luck.

    Any ideas? and thanks in advance.
     
  2. derbothaus macrumors 601

    derbothaus

    Joined:
    Jul 17, 2010
    #2
    There is a thermal component that needs to be installed correctly on certain iMac's or the fan's take off. Take it into Apple and have a proper tech do the install or maybe iFixit can help or maybe some info here.
    http://forums.macrumors.com/showthread.php?t=808178&
     
  3. panzer06 macrumors 68030

    panzer06

    Joined:
    Sep 23, 2006
    Location:
    Kilrath
    #3
    Any older iMac with a std 250GB HD does not have the fan issues of the 21.5/27 models. Older macs used the external sensor stuck directly on the drive. Usually fan issues on these older iMacs are related to bent/broken or misaligned pin contacts when reconnecting the sensor or failing to get the sensor to stay stuck to the drive.

    Cheers,
     
  4. derbothaus macrumors 601

    derbothaus

    Joined:
    Jul 17, 2010
    #4
    Either way. Check the thermal sensor.
     
  5. panzer06 macrumors 68030

    panzer06

    Joined:
    Sep 23, 2006
    Location:
    Kilrath
    #5
    Indeed that should resolve the fan noise, but I'm at a loss to explain the kernel errors. Don't know why changing the drive would cause that unless a clone or restoration was corrupted. Perhaps a fresh OS X install would fix that.

    Cheers,
     
  6. E-Tech thread starter macrumors member

    Joined:
    Mar 14, 2007
    #6
    4SNS/1/40000000 :'TLOP- 131.000 Error code I'm getting when Im doing built in diagnostic.
     
  7. E-Tech thread starter macrumors member

    Joined:
    Mar 14, 2007

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