The installation of card-induced failure

I bought a new unit of the machine, I need a network card installed.As a result, shut down the network card installed after the restart.The following breakdown:
1.Black screen display.Line out signal, to display bright, there is not detected Signal to the tips.
2.Lights mouse, keyboard light does not shine.
3.Machines can not be opened after the shutdown, the critical failure.Disconnect the power cord must be shut down.

Demolition Card, is still failure.

Errant ask you, is the main version of the problem, or monitor the problem.

This is not a card, the card is inserted when you estimate what the impact of the song, or dust to go with the only clean-up chassis hardware, and then a good play to try the.To look at To the screen to start it? Is to press the start button near the flash device information screen, if so, may be improperly installed caused by the driver, after holding down the F8 select Safe Mode to delete the installation of things can restart If a black boot, you need to clear cmos, as long as they can start to see the screen is the issue of software and hardware do, unless you abnormal voltage, violent or brutal attack on the installation, it should not be a problem of