iMac constantly putting itself to sleep after HDD upgrade

Discussion in 'iMac' started by xkmkmlmx, Apr 13, 2011.

  1. xkmkmlmx macrumors newbie

    Joined:
    Apr 13, 2011
    #1
    Mid 2007 iMac keeps going to sleep after HDD upgrade.

    I recently upgraded my imac's hard drive to a 2tb drive from a similarly speced 1tb hard drive, both installed by me.

    After installing snow leopard and getting everything back up and running, it started to crash/sleep every so often. And then it started doing it every 2 minutes. Thinking it might be a heat issue, I got temperature monitor installed. I immediately received readings that were 'off the charts'. An average reading of about 125F and some readings saying they were as high as 165F.

    The iMac had been on for a few hours already, so I immediately just did a quick hand test all over the case. No more warm in any area than ever before.

    Any ideas?

    I have not ran a hardware test yet, but I have reset PRAM and the like. No difference.

    Could it be that I didn't connect the heat thermometer back up correctly? Or that I placed it on a bad spot on the HDD?

    I am going to open it up in a little while and see what is going on, but I wanted to see if anyone had any thoughts before I went ahead.
     
  2. Detrius macrumors 68000

    Joined:
    Sep 10, 2008
    Location:
    Asheville, NC
    #2
    What temperature readings are you referring to? CPU? Hard drive? GPU?

    If you forgot to plug a temperature sensor in, the SMC takes the safe course of action which is to run the fans full speed. However, the software might register it as an extremely high temperature.
     

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