0d motherboard code

[Dodi_junior1st]

Hey, so I've had my pc for around 5 months now. But as I was cleaning it today and rewiring some stuff, i had to remove the RAM sticks (2x8gb ddr4) and when it came to putting the pc back together and turning it on only one of the sticks was on. Then i reseated it correctly on the motherboard (Crosshair VIII Dark Hero) and it turned on, but it gave me a 0d error code, so i tried to switch its reseat it on a different slot and it worked out. I just want to know if there is a way to fix the A2 slot, since it detected the stick but gave me the error code, because i want to take advantage of the dual channeling  feature... plus it looks awkward. (I forgot to add my CPU model: Ryzen 7 5800x)

[Latvian Video]

Do the other slots work? if its only the A2, you can put the rams sticks into A1 and B1, that still should do dual channel