PowerEdge R6515 black screen with AMD EPYC 7713P CPU
We tried to upgrade the CPU in a Dell R6515 server from the 7452 to the 7713P in two of our servers. One server the upgrade went fine, and we were prompted to "fuse" or lock the AMD 7713P into our server. The second server would load with the initialization screen, then the screen would go black and the monitor would go off. The server sounds like it is still running because the fans stay on, but we get no video. I thought we might need to reinstall the 7452 CPU, then update the BIOS before reinstalling the 7713P, but every time we update the BIOS, when the server reboots, it automatically downgrades to an older BIOS version.
We did move the 7713P from the broken server to the working server, and everything worked fine, so we know we don't have a problem with the CPU, the problem instead lies with the R6515 server.
Does anyone have any suggestions to get this R6515 working with the 7713P CPU? Or any ideas as to why the server would automatically revert to an older BIOS version? We are running the server with no backplane drives, no SD cards, and no USBs installed. Only the CPU, memory, and power supplies plugged in.