Hello,
I bought a Samsung M2 970 evo plus ssd and tried it on my MSI Z87 MPOWER MAX with a PCIE adapter, but it wasn't detected at all.
So I saw this thread and decided to try to add the nvme module in my bios.
I exported my current bios (E7815IMS.1A0), opened it with UEFITool, and inserted NvmExpressDxe_4 (I also tried the small version).
Both seems to be inserted without error. I exported it as a .rom file (E7815IMS.1A0.rom), and renamed it E7815IMS.1A0 as the original (a youtube comment said that worked).
Then I flash it, the process goes to the end and the computer reboots.
Everything works as before, but the ssd is still not detected in windows 10, diskpart, and the board explorer in bios is still showing the pcie slot as empty.

I don't know what to do now.
Thanks if you can help

Thanks for this fast answer !
I just tried with MMTool and other modules but same result.
I don't have PATA in my boot list, it's like the pcie slot is still empty.

Here is a link to the original bios, and 2 versions from UEFiTool and MMTool :
https://we.tl/t-akT0BGZmLZ


Thanks a lot

Just in case :
this is the motherboard : https://fr.msi.com/Motherboard/Z87-MPOWER-MAX/Overview (latest bios version)
ssd : https://www.samsung.com/semiconductor/mi...mer/970evoplus/
and pcie adapter : https://www.amazon.fr/gp/product/B07L873...1?ie=UTF8&psc=1 (maybe I picked a wrong adapter ?)

Thanks !
I was able to flash it, but the disk is still not detected in bios and windows.
I also tried another pci slot without success :(

In the bios, there is a m-flash panel, this is the same place where i exported the original that you modded.
I used the option "update bios" to load the modded file.
There is a progress bar during 1 minute and at the end it restart without error or confirm message.
https://i.ytimg.com/vi/pGjXsvH0LuA/maxresdefault.jpg

@Fernando
I see. This is an MSI motherboard so i'm not sure if the process is the same.
However according to this : https://fr.msi.com/files/pdf/How_to_flash_the_BIOS.doc ("Flash AMI UEFI BIOS by USB Disk Under DOS Mode")
There is an alternative to m-flash using DOS.
So i'll try that.

Thanks again for your help

I did the flash from dos but it's still not detected...
I'm out of options :(

Got a newer MSI board (H97M-G43)- updated microcode with UBU and flashed this bios from within the bios without any errors. I'd assume that older boards shouldn't be more touchy about flashing?

Make a backup of your bios after flashing, open the backed-up file in UEFItool or MMTool and check if it really contains the NVMe module?

@FLX

If the SSD is not detected in an existing Windows 10 OS, even for use as storage, there may be an issue with the PCIe-NVMe adapter or the SSD itself. Is there an option in your UEFI BIOS to disable/enable PCIe slots?

The download links to the "NvmExpressDxe_4" modules do not work. Does anyone have an updated link?

@boxofdeath

The Mega links don't work, but the "Mirror" links worked for me just now.