Lenovo ThinkAgile HX2320 Appliance User Manual page 85

http://sysmgt.lenovofiles.com/help/topic/LXPM/RAID_setup.html
7. Verify that the M.2 module is replaced successfully:
• The amber warning light on the node front panel is off.
• The system boots successfully with no POST errors or other errors.
. 81
Chapter 8 Hardware replacement procedures