Lenovo ThinkSystem SR950 Setup Manual page 227

Before you install the M.2 backplane, install the M.2 drives. See "Install an M.2 drive" on page 225.
Complete the following steps to install the M.2 backplane.
Watch the procedure. A video of the installation process is available:
• YouTube
• Youku
Figure 96. M.2 backplane installation
Step 1. Align the openings in the plastic supports at each end of the M.2 backplane with the guide pins on
the system board; then, insert the backplane in the system-board connector.
Step 2. Press down on the M.2 backplane to fully seat it.
After you install the M.2 backplane, complete the following steps:
1. Install the riser that you removed to access the M.2 backplane. See "Install the riser for slot 10 to 15
(riser 2)" on page 244 or "Install the riser for slots 16 and 17" on page 247.
2. Install the I/O tray and connect all cables. See "Install the I/O tray" on page 219.
3. See the documentation that comes with the M.2 backplane for device-driver and configuration
information to complete the installation.
M.2 backplane retainer adjustment
The M.2 backplane retainer can be adjusted to accommodate three physical M.2 drive sizes.
Complete the following steps to adjust the M.2 backplane retainer position:
Appendix B. Component reference
223