One of the most requested "exclusive" additions is Resizable BAR. With a modded BIOS, the MR9A Pro gains full ReBAR support, allowing modern GPUs (AMD RX 6000/7000 and NVIDIA RTX 3000/4000) to access the entire VRAM frame buffer at once. This yields up to a 10-15% performance gain in modern AAA titles.
What “BIOS exclusive” features typically mean machinist x99 mr9a pro bios exclusive