Figure 3. System board
1
4-pin power connector
2
Microprocessor fan connector
3
Power button connector
4
Internal speaker connector
5
Auxiliary fan connector 2
6
10-pin power connector
7
Auxiliary fan connector 1
8
SATA power connectors (2)
9
Clear CMOS (Complementary Metal Oxide
Semiconductor) / Recovery jumper
10
SATA 3.0 connectors (3)
11
M.2 solid-state drive slot
12
M.2 Wi-Fi card slot
13
Thermal sensor connector
14
Illuminated red dot connector
15
Front USB 2.0 connector
16
Parallel connector
17
Serial (COM2) connector
18
PCI Express x1 card slots (2)
19
PCI Express x16 graphics card slot
20
System fan connector
21
E-lock connector
22
Microprocessor socket
23
Cover presence switch connector (Intrusion switch
connector)
24
Coin-cell battery
25
Memory slot (DIMM1)
26
Memory slot (DIMM2)
6
ThinkCentre M720s User Guide and Hardware Maintenance Manual
Summary of Contents for ThinkCentre M720s
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