When I try to get from Win7 to BIOS with the ASUS Boot Setting utility, it gives me the dreaded "Update BIOS to get this functionality" message.
Currently using BIOS 702 and it was the same on 601.
I tried to check that I have the latest Boot Setting utility, but today there are no drivers or utilities listed for Win7 64 on the R6A support page. Boot Setting is not among the tools listed for Win10. (Glad I got what I could before the board arrived.)