Lenovo ThinkCentre M90n-1 - System Board Components Identification

System board
1 Microprocessor fan connector
2 Clear CMOS (Complementary Metal Oxide
Semiconductor) / Recovery jumper
3 Coin-cell battery connector
4 Internal speaker connector
5 M.2 solid-state drive slot 1 (for M.2 TG solid-state
drive)
6 M.2 solid-state drive slot 2 (for M.2 SATA solid-state
drive)
7 Wi-Fi card slot
8 Cover presence switch connector (intrusion switch
connector)
4 M90n-1 User Guide