Samsung 950 pro m.2 512GB not recognized by Windows 7

[Letodan]

Hello,

I have installed a Samsung V-Nand SSD 950 Pro m.2 drive into my Z170A-m7 MSI motherboard. The 950 PRO is recognized by name as a boot device in my bios. (Note that it is only listed as a Legacy (not UEFI) option.

However, in Windows under Device Manager, the new device gets added under Other devices > PCI Device, and has the yellow framed exclamation point icon indicating the driver was not successfully installed. The device does not appear at all under Disk Management. Nor does it appear under available disks during Windows 7 installation setup.

http://imgur.com/gallery/Gof8ABV

What I have tried:

- Attempt to "update Driver" for PCI Device in Computer Management
- Searched online for an actual driver from Samsung
- Update bios to newest 1.80
- Clear CMOS
- Disconnect all other HDs and see if it shows under Windows 7 DVD install setup
- Run Windows Memory Diagnostics Tool (someone found this to actually work)
- Reseat the drive on the mobo
- Run Samsung Magician (which does not find the drive)


My specs:
Z170a m7 MSI mobo
Skylake core i7 4.0 ghz
4x8GB Crucial Ballistix Elite DDR4 2666
Samsung 850 EVO 500GB SSD w/ Windows 7 Enterprise
EVGA GeForce GTX 970 4GB
Swiftech H240-x 90 CFM liquid cpu cooler
EVGASupernova 750W PSU
And then this little devil

Thank a lot in advance. I spent 7 hours on this today and am out of time and ideas.
d

 

[The Original Ralph]

you need to install the samsung NVMe driver for the 950 PRO - i just installed win 7 on a 950 PRO for a friend, it went like a dream after the driver install

the 950 pro will have to be installed first, otherwise the driver will not install if it doesn't detect an NVMe device

here's a link to the driver http://www.samsung.com/global/business/semiconductor/minisite/SSD/global/html/support/downloads.html?CID=AFL-hq-mul-0813-11000170

you might want to download the samsung data migration software as well - it did a flawless job cloning the existing OS from an AHCI drive - after cloning, the 950 booted with no need to run the windows dvd to "repair" boot files. Total time for the clone was under 10 minuts (77 GB on the OS drive) -

hope that helps