Hello, thanks for choosing Dell. [URL] You can see from page 16,  looks like  7773X is supported But we need the exact error message you saw for further troubleshooting.  Wish you a good one
I have an R7525 with dual EPYC 7713 processors. I was wondering if it's possible to upgrade this system to the v-cache processors. Say the 7773X. Some weeks ago, I played around with the website to configure a new machine with these processors to see if it was possible, but I got strange motherboard warnings.
Dell PowerEdge R7525 and v-cache EPYC processors