Hi and Welcome to ROG
🙂Crosshair VI Hero came out with a less than acceptable Bios (understandable being rushed for the new AM4 platform and had many unsuccessful updates (for some) since (depending on your individual configuration).
I tried many Beta Bios as I also experienced the cold boot bug. Not too big a deal as I rarely power down my system (Just sleep mode) however when I did power down the Bios did not retain my personal settings and defaulted to Lower frequency and RAM timings. I settled on Bios 6201 which worked for me and was the most stable.
Can't help with Qcode 7A nor OD being reserved micro codes. 22 is pre memory PCH initialization and 55 means no memory installed.
We owe our existence to the scum of the earth, Cyanobacteria
My System Specs:
MB:ASUS ROG Crosshair VII Hero/WiFi GPU:EVGA GTX 1080 sc PSU:Corsair AX-1200i
CPU:AMD R7 2700X Cooler: Corsair Hydro H115i Case: Corsair Carbide 780t
Memory:G.Skill TridentZ F4-3200C14D-16GTZR SSD:Samsung 500GB 960 EVO M.2
[/HR]