Lenovo ThinkSystem SR645 Maintenance Manual page 189

Step 3. Remove the M.2 module from the chassis.
Figure 78. M.2 module removal
a. Loosen the screw.
b. Release the M.2 adapter from the pin and carefully lift the M.2 adapter out from the chassis.
Step 4. Disconnect all M.2 cables from the system board.
After you finish
If you are instructed to return the old M.2 adapter or M.2 drive, follow all packaging instructions and use any
packaging materials that are provided.
.
Chapter 4 Hardware replacement procedures
179