Figure 133. M.2 drive installation
Step 1.  Insert the M.2 drive at an angle of approximately 30 degrees into the connector. 
Note: If your M.2 backplane supports two M.2 drives, insert the M.2 drives into the connectors at 
both sides.
Step 2.  Rotate the M.2 drive down until the notch 
1  catches on the lip of the retainer  2 .
Step 3.  Slide the retainer forward (toward the connector) to secure the M.2 drive into place. 
Attention: When sliding the retainer forward, ensure that the two nubs 
3  on the retainer enter the 
small holes 
4  on the M.2 backplane. Once they enter the holes, you will hear a soft “click” sound. 
Figure 134. Instruction for sliding the retainer
Step 4.  Align the blue plastic supports at each end of the M.2 backplane with the guide pins on the system 
board. Then, insert the M.2 backplane into the M.2 slot on the system board and press it down to 
fully seat it. 
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ThinkSystem SR650 Maintenance Manual