ccris79 :
wise-alec :
I have an ASUS P9X79-DELUXE board (bought it new November 2013).
Made a BIOS-update (to Version 4805).
Made a new bootable USB-stick (Win7 merged with driver for Samsung NVMe and USB3).
Installed an ASUS Hyper M.2 X4 PCI-E Mini Adapter Card (into 2. slot from bottom - called Slot No. 4 Slot description PCIe 3.0 x1_3 slot = according to User Guide).
Slipped in a Samsung SSD 950 Pro Series NVMe M.2 2280 256GB (into the adapter).
Booted from USB-stick.
Win7 installed fine.
Booted from SSD 950 into Win7 perfectly.
Added NVMe driver (check Control Panel/Device Manager - there should then be a new section called "Storage controllers" in which "Samsung NVMe Controller" is listed).
Checked speed with "Samsung Magician" (newest version needed!).
BOOTS and WORKS fine and fast.
I have the same board you mentioned (P9X79-Deluxe + I7 3930K + 4x8GB RAM, attention, not X79-Deluxe, which is a different model). When trying to upgrade the BIOS to 4805 which was published for X79-Deluxe board I get blocked. I managed to upgrade from 4701 to 4801, which is the latest version published on Asus site for P9X79-Deluxe, but it seems that it does not bring nvme support. How did you manage to upgrade to 4805 on the P9X79-Deluxe? I see today the latest BIOS for P9X79 as 4801 and the latest BIOS for X79-Deluxe as 4805.
... I'm terribly sorry about misleading you ...
I never realized that there is a difference between P9X79 and X79 !
You pointed it out - but I didn't think about it.
I have a X79-Deluxe (had to dig out my old users guide).
I wonder why ASUS is making a difference?
SORRY again.