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SMC and PRAM Reset

Last modified: Jan 29, 2014 8:01 AM
5 43050 Last modified Jan 29, 2014 8:01 AM

SMC RESET


  • Shut down the computer.
  • Unplug the computer's power cord and ALL peripherals.
  • Wait 15 seconds.
  • Attach the computers power cable.
  • Wait another 5 seconds and press the power button to turn on the computer.


PRAM RESET


  • Shut down the computer.
  • Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
  • Turn on the computer.
  • Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
  • Hold the keys down until the computer restarts and you hear the startup sound for the second time.
  • Release the keys.
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