How Can I Do A Hardware Reset?

Discussion in 'macOS' started by JPM42, Jun 6, 2009.

  1. JPM42 macrumors 6502

    Oct 21, 2007
    So I'm a musician and the soundcard that I use to record (which is connected via Firewire) just suddenly stopped working not long after I moved to another house. After checking al the possible remedies, I was suggested that I might have some luck doing a hardware reset. I have an iMac. Does anyone know how this might be done?

    Your help is greatly appreciated. Thanks!
  2. brop52 macrumors 68000


    Feb 26, 2007
    SMC: Shut down, unplug everything including the power cord, keyboard, mouse, and anything plugged into it, wait 15 seconds or more, plug it back in and the mouse/keyboard, and last turn it on.

    PRAM: Hold down command-option-p-r at startup until it chimes twice and then let go.

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