CrisAsi, Are you running the latest BIOS? Did you DL and install the AMD drivers from here? What do you think it is, what did you purchase? What does Ryzen Master (RM) say? Where was it bought? John.
CPU-Z 2.09 was released 1/19/24
https://www.cpuid.com/softwares/cpu-z.html#version-history
The 5700X3D launched 1/31/24
The CPU will likely be recognized correctly in a future version.
