Step 20.  Remove the backplanes or backplates. See “Remove a 2.5-inch hot-swap drive backplane” on 
page 60, “Remove a 3.5-inch hot-swap drive backplane” on page 67, or “Remove a 3.5-inch 
simple-swap drive backplate” on page 69.
Step 21.  Remove all the M.2 drives from the M.2 boot adapter. See “Remove an M.2 drive” on page 133
Step 22.  Remove the M.2 boot adapter. See “Remove the M.2 boot adapter” on page 130.
Step 23.  Remove the Remove the internal CFF adapter. See “Remove the internal CFF adapter” on page 
122.
Step 24.  Remove the intrusion switch. See “Remove the intrusion switch” on page 127.
Step 25.  Remove the CMOS battery (CR2032). See “Remove the CMOS battery (CR2032)” on page 76.
Step 26.  Remove all the PHMs. See “Remove a processor and heat sink” on page 177.
Step 27.  Remove the system board. See “Remove the system board” on page 192.
Step 28.  Remove the power distribution board. See “Remove the power distribution board” on page 166.
Step 29.  Remove the foot stands. See “Remove the foot stands” on page 102.
Step 30.  Remove the EIA brackets. See “Remove the EIA brackets” on page 86.
After disassembling the server, recycle the unit in compliance with local regulations.
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ThinkSystem ST650 V2 Maintenance Manual