I know the 9800X3D got it's own AGESA update. I think you need to update your BIOS prior to installing the 9800X3D. I used the flash-back feature on the motherboard I bought since I didn't have another AM5 CPU and it went smoothly with just the 24 pin plugged into the motherboard.Thank you mate.
Another quick question, would it be recommended to format windows if I'm going from a 7950x to a 9800x3d? Also, is there anything special I need to do to get the most out of it, I remember when it first came out I found a video about changing some settings in either BIOS or windows, but I can't for the life of me find it now. Thanks