Yes, I believe CSM must be off, with above 4G encoding and SAM/ReBAR toggled on.
You might check for a BIOS update. I had a 9900k and MSI Z390 board and it had resizable bar support.9th generation intel CPU. No ReSizeable BAR for me.![]()
That is a massive performance increase in your minimums!Thanks for all the replies. So i did enable it and in Heaven Benchmark 4.0 the scores were higher overall. Even more strange is the Minimum FPS went from 10.8 FPS to 66.0 FPS with Rebar enabled.