R620 don't start at all after install Oracle Linux 7.9 --> exception during the UEFI pre-boot environment.

Hi,

I have problem with one of my serwers. I will describe the situation:
I had the RedHat 6.5 on this machine. The system was installed on external array DELL MD3620F. I decide to install on this server new OS: Oracle Linux 9.5. Everything was OK, the OL9.5 installed succesfully, the system start without any problems. Unfortunately, it turned out that I am not able to install Oracle 12C on this system, and I have to install an older version of Oracle Linux, 7.9, on this server. So i installed the OL7.9, and after that the system don't start.
Now i can't start server at all, i can't go into BIOS, can't go into Livecycle Controller, can't go info Boot Menu.
 
Can anybody help me to reanimate the server?