When use AMD Richland CPU, it will require latest chipset driver for support it's on-board VGA.
Please download latest chipset driver from Biostar website.
https://download.biostar.com.tw/upload/Driver//Chipset/ATI/A75/FM2/WIN78.exe
https://www.biostar.com.tw/app/en/mb/introduction.php?S_ID=615#dl
