I have the maximus X hero wifi mobo, and been using since 2018,
over the last few days been getting an error Qcode A2.
On the screen get message saying enter set up to recover BIOS setting.
i go in and just click save and reset (do not change anything) and it will than load up as normal.
be quiet dark rock pro 4
corsair HX750 PSU
16gb Corsair LPX RAM