Good marks Transcend, it’s the fastest M.2 SSD NVME from the Samsung’s line. Off course bottlenecked by the PCIe 2.0 limitation, if this mobo has PCIe 3.0 support, I’m sure it will reach 3300 MB/s read and 2500 MB/s write, the maximum performance this drive offers. Anyway, I’m glad you used the PCIe 16x (videocard reserved), I 'd have used too, but I have a dual card SLI config installed, so I have to use the PCIe 4x slot the only available in my mobo.
PD: I have tested the AHCI ver. of Samsung SM951, and confirm that it’s working. The Bios dectects it in the boot menu with full device name and Windows boot manager too, wherever I choose it boots smooth and fast. I followed the excellent guide by Fernando, I’m going to show you how this guide applies to this board bios soon. In the meantime I’ll test the NVME version too, to get both ver. fully supported by this bios.
Update: I finally tested the SM951 NVME and is slightly better than the AHCI version. I’ll post the resulting benchmark…