Intel pages say that the board had integrated graphics. Desktop motherboards used to have integrated graphics with separate chip until IGP started to appear in the CPU. Not so sure about server boards.
I took a peek in Fujitsu and Dell servers. Both had integrated Matrox graphics chip. Dell iDRAC corresponds to Intel RMM4?
If you do not get signal from the board to monitor, then you can’t access BIOS/EFI, can you? That is a problem that you would have with any OS. Of course, if you do have remote management, then you might have access to BIOS.
If you had enough access to select PXE boot, then you could boot the installer with kickstart (all config in ks) or with VNC support (and connect to installer over net with VNC client). Either way, there would be no need for monitor on the server.
I have installed CentOS Linux 8 on Fujitsu Primergy server dated to 2011. The graphics was no issue, but RHEL 8 has no support for the older RAID controller in that model. Luckily, ELRepo has driver disks that the installer can load over net. Otherwise the installer would not have seen any storage volumes.