Question I am using AOC-SLG3-2M2 in X10DRi-T4+ motherboard on PCIE slot 3 x16 lane. I have two M.2 device installed by only detect the top M.2 device. Answer For my X10DRi motherboard with x16 slot, please set the PCIE Bifurcation in the BIOS setting from auto to x4x4x4x4 BIOS >> Advance >> Chipset configuration >> North bridge configuration >> II0 configuration Was this FAQ helpful? YES      NO Enter Comments Below: Note: Your comments/feedback should be limited to this FAQ only. For technical support, please send an email to support@supermicro.com.  Enter your email address below if you'd like technical support staff to reply:  Please type the Captcha (no space) X H 9 9 FAQ Stats FAQ ID Related Category / Keyword Date Posted Code 24664 N/A 12/22/16     Print Answer