Replacing HD in late 09 iMac, need some help!

Discussion in 'iMac' started by maximumsportz, Apr 15, 2012.

  1. maximumsportz macrumors regular

    Sep 21, 2008
    Well my late 09 imac HD is failing. It has a Seagate ST31000528ASQ HD. I've been looking up a replacement but can't find a straight answer. I know it has the exact brand because of the temp wire on the HD.

    Can someone just tell me the best way to go about replacing this drive and even with the exact model number.

  2. miles01110 macrumors Core


    Jul 24, 2006
    The Ivory Tower (I'm not coming down)
    You can buy any 3.5" SATA hard drive. No brand is better than any other; buy the one with the best warranty for your budget and size requirements.
  3. maximumsportz thread starter macrumors regular

    Sep 21, 2008
    What about the temp sensor, I know ppl were having issues with it coming on all the time..
  4. rkaufmann87 macrumors 68000


    Dec 17, 2009
    Folsom, CA
    My recommendation is to either call or do an online chat with support at (OWC) to get recommendations. Either that or take the machine in for service at an AASP or Apple Store to have the drive replaced. An AASP has more flexibility than an Apple Store, meaning the Apple Stores normally will only replace with the same drive that was originally installed.

    You may get all kinds of other offbeat recommendations such as shorting out the temp sensor, adding software to control the fans etc.. however IMHO I'd ignore those.
  5. All Taken macrumors 6502a

    Dec 28, 2009
    Any of these will work:

    Better yet use any drive and take a a small piece of wire bend it round in a U shape, put one end in each of the temp sensor terminals, job done.

    You can also install any drive and use SMC Fan Control if you prefer not to short the temp sensor. It's very easy to do.

    If you don't want to spend a small fortune on the answer above mine then buy one of the official drives I linked to.

    Hope that helps.
  6. maximumsportz thread starter macrumors regular

    Sep 21, 2008
    Damn, thanks for the help just was there was someone out there who replaced their drive and just tell me the exact one they used.

  7. kpgh554 macrumors regular


    Dec 29, 2011
    iver england
    i replaced my hd a seagate barracuda 250gb with a seagate barracuda 1tb and have had no probs with it since as my comp came with a barracuda hd thought it best replace like for like. go to to see specs. just swap /load /run-. i bought mine from ebuyer as was reasonably priced.
  8. blueroom macrumors 603


    Feb 15, 2009
    Toronto, Canada
    I put a SSD in my 27" 2009 iMac. Shorted out the temperature sensor as mentioned before and its works great. I had to find a 2.5" to 3.5" bracket.

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