B490 using Win7 or WIN8 system is not installed on the video card driver, cannot find the video card device

Part of Yang Tian V580, M490, B490 dual graphics card switching model (factory with Windows 8 machine), the first boot system solution package into the system, may appear in the Device Manager can only recognize the machine's integrated graphics card. This behavior also occurs with the reinstallation system.

After testing the BIOS setup problem, the picture in Device Manager is as follows:

Solution:

Check the BIOS settings The default video mode of the BIOS is integrated and set to the video card switching mode.

Set as shown in the following illustration:

You can then see the stand-alone graphics and integrated graphics for the machine in System Device Manager.