Imac PSU + Humming sound

Discussion in 'Mac Basics and Help' started by staka69, Aug 16, 2006.

  1. staka69 macrumors member

    May 21, 2005
    Hi everyone, should I be worried.

    My Intel iMac (20" 2.0 ghz) started making a humming sound about a week or so back. I bought the computer when they first came out (February?) and it had been perfect up until now, at first I thought it was the fan kicking in cuz it has been hot and the computer is not in an air conditioned room but it sounds like a psu humming sound to me.

    Is there a track record with the psu, I know there were issues with the G5 Imac's, should I call apple?
  2. dcv macrumors G3

    May 24, 2005
    I don't have an Intel iMac but have sent my iMac G5 back before for a replacement PSU. Try adjusting the screen brightness... if the buzzing increases/decreases with the brightness then it's most certainly the PSU making the sound.

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