I recently updated the BIOS of my ASRock x399 Taichi, but now the RAM no longer wants to run at 3200, can is flash the BIOS again with the older version?
Yes i think you can, but only with the flash back feature.
Have you tried the usual voodoo trick first? BIOS reset with battery out and computer unplugged?
No, I remembered today about that, I'm going to try it.