how do you do a hardware test on the new airs?

Discussion in 'MacBook Air' started by richard371, Nov 26, 2010.

  1. richard371 macrumors 68020

    Feb 1, 2008
    i rebooted and held down the D key and all I get is a grey screen.
  2. astrorider macrumors 6502

    Sep 25, 2008
    You have to hold down D for a couple minutes before the hardware test starts up. If you have the USB drive inserted, it starts up the hardware test quicker it seems.

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