@Fernando
Thanks! I will try that and a few other things and hopefully it will work somehow...
Anyway, many thanks for all your help!!

Maybe I could ask you on more question?
Are the "Lan PXE OPROM" and "Power on by PCIE" Settings in BIOS relevant for this topic or can I forget about them?

Greetings!

solution found for ssd pci express ahci and x79
i have the rampage IV extreme with xp941 bootable.
i found out that there are a lot of different version of samsung_m2_dxe.
if i use the one that are suggested in forums, it doesn't work.
the only one that work comes from a modded bios created by asrock for one on their customer.
i attached it here, because it is the only one that works

Zitat von Fernando im Beitrag #120

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thanks for having published your interesting find, which may help other users of a Samsung SM951 SSD to get it bootable.
Since the Samsung_ME.DXE module has nothing to do with the NVMe support, which is the topic of the other thread where you have posted the same, I propose to remove your post there. Your contribution there may be misleading for the users.

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Zitat von xelanaiznac im Beitrag #95

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solution found for ssd pci express ahci and x79
i have the rampage IV extreme with xp941 bootable.
i found out that there are a lot of different version of samsung_m2_dxe.
if i use the one that are suggested in forums, it doesn't work.
the only one that work comes from a modded bios created by asrock for one on their customer.
i attached it here, because it is the only one that works

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Zitat von dwaleke im Beitrag #100

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Zitat von xelanaiznac im Beitrag #95

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solution found for ssd pci express ahci and x79
i have the rampage IV extreme with xp941 bootable.
i found out that there are a lot of different version of samsung_m2_dxe.
if i use the one that are suggested in forums, it doesn't work.
the only one that work comes from a modded bios created by asrock for one on their customer.
i attached it here, because it is the only one that works

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Thank you so much for posting this. I tried quite a few times on my Asus Z87 Maximus VI Gene bios and could never get the 951 to show in the bios. This X79 module did the trick.

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Hi All, Fernando,

Over the weekend I have also had fun with a Samsung SM951 M.2 Typ 2280-D3-M (NGFF) - 256GB (B) in a DeLock PCI-Express-x4 Kontroller (which has an M keyed slot, damn the designers!)

I have an ASUS Maximus VI Extreme, with 1603 BIOS, modded based on your guides and files (I updated RAID and SATA). It works perfectly, just have to make sure you edit the BIOS CAP file with Aptio IV tool. The UBU's Aptio V tool is not good: if you use it, the flashback function will not pick up the BIOS file.

The 'X79-version of the Samsung DXE module' works for me as well. I couldn't help notice that the 'old-fashioned' boot simply failes or stucks if I try to boot from the SM951. Which created an interesting problem for me, since I had my system image, with MBR/non-GPT disks. What could be the problem with it? Why is the UEFI mode has to be forced?

I have tested it with Win10 and Win7, the performance holds what is said in the specifications.

Good site, good forum! I'm glad I found you guys!

Since this week you can now use a windows 7 or windows 8 license key when you install windows 10. no need to install old windows version and upgrade anymore.