Intel Motherboards : Which M.2 ultra slot is M_1, and which is M_2

Author: wardog
Subject: Which M.2 ultra slot is M_1, and which is M_2
Posted: 31 Dec 2016 at 5:54pm

With 40 lanes you're golden on both.

pg4:

Storage: ??nbsp;   1 x Ultra M.2 Socket (M2_2), support type 2230/2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x4 (32 Gb/s)** ??nbsp;   1 x Ultra M.2 Socket (M2_1), support type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x4 (32 Gb/s)** * If you install CPU with 28 lanes, the M2_1 only supports SATA type M.2 module.

That should make you happy you bought a 40 Lane CPU