Dell PowerEdge R720XD - NVMe boot not working

Hi there,

I am trying to get my Dell R720XD to boot from a NVMe drive.
Installation of Windows and Linux both work through a USB Drive, finding my NVMe drive straight away and installing the software on it.

Then comes the weird part, the machine is unable to boot from the NVMe disk.
I can try a work-around, putting a usb with NVMe drivers inside the machine, booting from there and redirecting to the NVMe.
But i rather not.

Can someone help me directly boot from the NVMe?

Machine specs:

DELL R720XD
Bios 2.8.0
UEFI Boot enabled
SSD EX900 HP
NVMe Adapter to PCI-e brandless

Thank you!

@Wagenaar :
Welcome to the Win-RAID Forum!

These are the requirements to be able to boot off an NVMe SSD:
1. The mainboard BIOS must support booting in UEFI mode.
2. Within the BIOS must be a specific NVMe module (usually named "Nvme"), which will be loaded while booting in UEFI mode.
3. The Windows OS should natively support NVMe (best choice: Win10).
4. The NVMe SSD has to be partitioned by using the modern GuiMode Partition Table (GPT) and has to be booted in UEFI mode.

Please check, whether all points are fulfilled by your system.
If you are unsure regarding point 2, please attach the latest BIOS for your system as *.zip archive or give us a link.

Regards
Dieter (alias Fernando)