Can you help me please to mod Asus p5q se2 bios?
You can this method, any issues post on the related thread,
Others methods: Clover or buy a Samsung 950 Pro.
Good luck.
[Experimental] NVMe Option ROM - BIOS/UEFI Modding / BIOS modules (PCI ROM, EFI and others) - Win-Raid Forum (level1techs.com)