Lenovo 10A4 Hardware Maintenance Manual page 98

Figure 18. System board part locations
1
Serial (COM1) connector
2
Optional DisplayPort connector
3
System fan connector
4
Microprocessor
5
Cover presence switch connector (intrusion switch
connector)
6
Clear CMOS (Complementary Metal Oxide
Semiconductor) /Recovery jumper
7
Internal speaker connector
90
ThinkCentre M83 and M93/p Hardware Maintenance Manual
8
Power switch board cable connector
9
Memory slots (2)
10
Battery
11
Mini PCI Express card slot
12
SATA 3.0 connector
13
Hard disk drive power connector
14
Optional USB 2.0 connector