When booting, the BIOS is unable to detect my Samsung 950 Pro, therefore not booting from it.

After some time it is detected, and I can set it as the first in the boot order in BIOS, and the system boots normally. (It is moved to the second priority when detected)

Anything I can do, so the drive is detected right when I power my computer?


  • Name: NVMe Samsung SSD 950
  • Firmware: 1B0QBXX7 (Latest, according to Samsung Magician) Driver:
  • Latest download from Samsung website


  • Name: Gigabyte Z97X-Gaming 3
  • Firmware: F5 (05/30/2014)


  • Name: Windows 10 Pro
  • Build: 14965 (Insider Preview)

EDIT I have updated my Motherboard firmware to F7. This does not solve the problem, but it seems like it has helped it a bit. It does not feel as the time for it to detect the drive is as long as it was before.

  • First: Update your BIOS. The latest beta version is F8d, but probably just go to the latest stable: F7. – music2myear Dec 16 '16 at 0:07
  • Also, have you had this issue since you first put the drive in this computer, or did it work fine at first and then develop this problem later? Is this a clean install of Windows on this drive, or did you copy/upgrade from a different drive? – music2myear Dec 16 '16 at 0:08
  • Have you tried connecting another SSD or HDD to the same SATA cable? What happens if you try a different motherboard SATA port or cable? – Bob Dec 16 '16 at 0:25
  • @Bob the 950Pro is a M2 SSD, no SATA, so there are no cables. – magicandre1981 Dec 16 '16 at 5:30

My problem have been fixed. I ordered some more RAM, and after inserting these in the machine, so all 4 RAM slots are filled, there have been no delay detecting the disk and starts normally.

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