Hello, I'm trying to make an nvme ssd boot on A8N SLI SE motherboard 939 socket nforce 4
the ssd is detected in windows i'm trying to mod the bios but can't open the file with MMTool i've tried all versions
Don't ask me why i'm doing it's just for fun

EDIT by Fernando: Thread title specified

@Fernando why not and why Samsung 950 Pro SSD?

Just use Clover or DUET with booting from IDE drive (example Industrial CF card with IDE adapter or IDE HDD).
Screenshot : LINK

I understand, I thought the bios doesn't detect it as a bootable device, so samsung 950 pro is recognized by any legacy bios as a boot drive?
I could still try booting it with clover

@agentx007 that FX60

@agentx007 did you make any bios settings for clover? because for me it starts booting but it gets stuck

Standard clover needs NVMe drive to be GPT, and proper files present on EFI partion (usually created and hidden during EFI OS installation).
Also, I assume you already installed OS.
If not you need a UEFI windows image/USB to make it work with Clover.

Here's a video guide I made some time ago (it's made on Intel, but should work with S939 as well) :
https://www.youtube.com/watch?v=PxfkwgxLL2c

@agentx007 I've got to the point where i try to boot the windows 7 usb in uefi mode witch clover but when i insert usb clover freezes then if i remove it resumes, if i boot with usb stick inserted it doesn't reach the boot screen

Well, I did had to use Industrial CF card with IDE adapter on S939 (because DFI board I own, doesn't have USB booting).

Did you copied the updated bootx64.efi file ?

I can boot usb on a8n sli se motherboard without clover, and clover boots but when I insert another usb it freezes if I remove it it comes back

there is also the problem that I can't find a driver for HP EX900 SSD for windows 7 :( I found something that it could work with Intel 760p driver but it doesn't
ant ideas :) @Fernando