Sleep issues and external hardrives

Discussion in 'iMac' started by elliemiller1989, Apr 12, 2012.

  1. elliemiller1989 macrumors newbie

    Apr 12, 2012
    I brought a external hard drive with worked fine with my Mac Mini (ran Tiger) but when I use it with my new iMac (Lion), the iMac doesn't wake up from extended periods of sleep and I have to hard reset it. I have owned Macs for 6 years and never had a problem but I'm not that whizzed up with how to fix it.
    Really don't want to pay for AppleCare or buy a new hard drive if possible but Im completely confused.

    Are there any hard drive makes which cause problems with Lion?

    Much much much appreciated

  2. Razorhog macrumors 65816


    Sep 16, 2006

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