do you have the latest bios version?
Description B150 PRO GAMING/AURA BIOS 1806
Improve system stabilityhttps://www.asus.com/us/Motherboards/B150-PRO-GAMING-AURA/HelpDesk_Download/
and all drivers update installed? windows updates?
you can try with the igp from your cpu to see if you got a windows screen appear on your monitor
go in the bios and set integrated instead of pci-e