If your computer fails to turn on when you hit the power button..... (no lights, no sound, just acts dead)
Unplug the power cord from the back of the computer for a minimum of 30 seconds. Plug back in and try to power on.
When you unplug the power cord you may hear a high pitched "whine" from the power supply (the box inside the computer where the power cord plugs in). This may high pitched sound may slowly disapate as the charge in the power supply is released.
Many times a computer can build up a charge and this will prevent the computer from coming up. We usually recommend plugging and unplugging several times extending the time period the machine is unplugged up to 2 or 3 minutes.
If this fails to resolve the issue you may have a dead power supply or a bad mother board (logic board for you Mac folks). Checking for a dead power supply is easy for any tech and is by far the cheapest repair. Usually around $100 or less for a quality part.
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