Moniter going into power saving mode?

  Unluckyboy43 05:09 11 Nov 2015
Locked

Whenever I put my Graphics card (N640GT) into my PC upon boot up it immediately puts my monitor into power save mode regardless if the cord is plugged into the mother board or graphics card itself. The card requires 400W and I have a 750W power supply yet still nothing? And everytime the computer is completely shut down it likes to make 2 constant high pitched beeps.?

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