f.  Slide the retainer backwards until it is seated in place.
Install an M.2 drive
Follow instructions in this section to install an M.2 drive.
About this task
To avoid potential danger, read and follow the following safety statements. 
•  S002 
CAUTION: 
The power-control button on the device and the power switch on the power supply do not turn off 
the electrical current supplied to the device. The device also might have more than one power cord. 
To remove all electrical current from the device, ensure that all power cords are disconnected from 
the power source.
Attention: 
•  Read the “Installation guidelines” on page 85 to ensure that you work safely.
•  Touch the static-protective package that contains the component to any unpainted metal surface on the 
server; then, remove it from the package and place it on a static-protective surface.
Watch the procedure 
A video of this procedure is available at YouTube: 
https://youtube.com/playlist?list=PLYV5R7hVcs- 
DoEcxrm2zKNpaKOdZ3f8Qc
.
Procedure
Step 1.  Locate the M.2 drive slot on the M.2 boot adapter. 
Note: As ThinkSystem ST250 V2 supports two M.2 drives, install your M.2 drive in slot 0 first.
Figure 77. M.2 drive slots
Table 23.  M.2 drive slot locations on M.2 boot adapter
1  M.2 drive slot 0 2  M.2 drive slot 1
Chapter 4. Hardware replacement procedures 145