Pressing and holding the power button

Discussion in 'Mac Pro' started by Neonguy, Oct 26, 2006.

  1. Neonguy macrumors 6502

    Joined:
    Sep 10, 2006
    #1
    What it is for if you press and hold down the power button on a mac pro? The light flash really fast and make a really loud beep. I know this is use for Firmware upgrade, but I try to restore a Firmware update but couldn't. I try holding the power button while the computer start up see what it for but I get a blank screen afterward. Is this going to screw up my Computer? I force shutdown already and already went back to Mac OS X just fine.
     
  2. Superdrive macrumors 6502a

    Superdrive

    Joined:
    Oct 21, 2003
    Location:
    Dallas, Tx
    #2
    If you are back in Mac OS X already and it's working fine, I wouldn't worry about it. You should only have to shut your Mac off that way after a hard lock or kernel panic. If you are trying to apply a firmware upgrade, try and follow the software instructions again. If it went positively before, it would most likely tell you.
     

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