This situation has occurred : shortly after I reinstalled Windu did not want to work a discrete graphics card , and the software is installed, but a piece of iron was in the device manager as a standard VGA adapter. And therefore , the laptop was on integrated graphics
. In the bios have to work on a discrete piece of iron , resulting in the monitor is turned off completely. "Machine" includes running Windows, but the screen is blank.
Attention to the question !
how the hardware reset bios on this laptop ? Battery pull there or bypass any contacts ....
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