When you install a video card, the integrated graphics controller on your processor gets disabled electronically, unless your computer provides functions for switchable graphics. You need to check with the board maker for any BIOS or software settings that allows switchable graphics.
Make sure you are installing the latest video drivers here:
Select your operating system version and download the latest driver.
Yeah, my MB is capable of that but it seemed like some drivers compatibility issue. I cleaned everything up, now is working, almost flawlessly. Last day, after auto restarting Windows to complete an update process, it switched to a basic vga + monitor. i had to cmos the bios and later restore the settings.