Per your suggestion, I moved RAM to A2/B2 and enabled XMP 2.0 Profile 1. Selected DRAM frequency to DDR4-3000 saved and booted to windows. Now both task manager is showing speed as 3000Mhz.First, shut down your system and move the RAM over to slots A2/B2 as per your motherboard manual.
Second, see if you can find a way to enable XMP in your system BIOS.
-Wolf sends