2011 27" iMac very sluggish.

Discussion in 'iMac' started by nStyle, May 26, 2011.

  1. nStyle macrumors 65816

    Dec 6, 2009
    Long story short:

    Just had a power outage.
    Mac cut off.
    Turned Mac back on.
    Started Firefox.
    EXTREMELY sluggish performance.
    Safari is much better but something still doesn't feel right.
    Tried reinstalling Firefox, no luck. Firefox freezes and won't close unless it is forced.

    Any ideas guys? Why would Firefox all of a sudden turn rotten just because of a little power outage?

    Mind you, I have no surge protection or anything at the moment but I have just ordered an APC 1000w UPS backup unit.
  2. Michaelgtrusa macrumors 604

    Oct 13, 2008
    Make certain that you have deleted all the firefox files on you're mac and download agin.
  3. Voondebah macrumors member

    Mar 28, 2010
  4. Drag'nGT macrumors 68000


    Sep 20, 2008
    Try Appcleaner http://www.macupdate.com/app/mac/25276/appcleaner
    Then repair permissions.

    After that find a cheap battery back up. They're usually $30-50 and give you around 45min of use after a power failure. Plenty of time to turn off the computer and other electronics. Worth every penny.
  5. MythicFrost macrumors 68040


    Mar 11, 2009
    Make sure the disk is OK: Disk Utility > Verify Disk
  6. coolspot18 macrumors 65816

    Aug 16, 2010
    A cheap UPS is usually only 300 - 350VA, and that won't last very long, perhaps 5 minutes for 27" iMac (~310W). For a decent runtime, the OP will need a UPS with >1000VA capacity.

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