Yes, i've updated Bios week or so before 2nd gen Ryzen release, so it's "up to date" with 1st GEN, Ryzen 1xxx and 2xxx CPU's and yes, RAM is installed in A2 slot, since in MOBO manual, it says 2933 mHz SR should go in A2 for that speed. Tempered with XMP profiles a while ago, nothing helped...