@Kural
Welcome to the Win-RAID Forum!
Since your Intel G41 chipset mainboard doesn’t have an UEFI BIOS, you have only the following options to be able to directly boot off an NVMe SSD:
- a) the NVMe SSD is a Samsung 950 Pro (has an NVMe Option ROM in-the-box)
- b) insert a modded variant of the NVMe Option ROM (look >here<) into the mainboard BIOS.
Good luck!
Dieter (alias Fernando)
Edit: MeatWar was faster than me.