I'm also having a problem installing FreeBSD 11.1 to IBM X3100 M3. During boot up and choosing Multi User, Single User, etc. it stuck and hangs. I keep searching if this has to be a problem on compatibility issue for the server and the OS or just configuration needed on Bios in order for it to work.
Also tried installing FreeBSD 11 but it reboots during boot up. Does anyone already experience this. Please see attached pics. THANKS!