11
SATA power connector
12
Auxiliary fan connector
13
SATA 3.0 connector
14
SATA 3.0 connector
15
SATA 3.0 connector
16
Clear CMOS jumper
17
SATA 3.0 connector
18
M.2 storage drive slot
19
M.2 Wi-Fi card slot
20
Thermal sensor connector
21
Illuminated red dot connector
22
Front USB 2.0 connector
23
Front USB 2.0 connector
24
Serial connector (optional)
25
Thunderbolt connector
26
PCI Express card slot (physical link width x16;
negotiable link width x4, x1)
27
PCI Express x1 card slot
28
PCI Express x16 graphics card slot
29
E-lock connector
30
System fan connector
31
Cover presence switch
32
Coin-cell battery
33
Microprocessor socket
34
PS/2 keyboard and mouse connector
Machine type and model label
The machine type and model label identifies the computer. When you contact Lenovo for help, the machine
type and model information helps support technicians to identify the computer and provide faster service.
The machine type and model label is attached on the side of the computer as shown.
Figure 4. Machine type and model label
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