Figure 4. System board part locations
1
Thermal sensor connector
2
Memory slots (2)
3
Battery
4
Microprocessor fan connector
5
Clear CMOS (Complementary Metal Oxide
Semiconductor) /Recovery jumper
6
Internal speaker connector
7
Serial (COM2) connector
8
eSATA connector
9
SATA connector 2 (SATA 2.0 connector)
Machine type and model label
The machine type and model label identifies your computer. When you contact Lenovo for help, the machine
type and model information helps support technicians to identify your computer and provide faster service.
10
PS/2 keyboard and mouse connector
11
Front USB connector 2 (for connecting additional
USB devices)
12
Cover presence switch connector (Intrusion switch
connector)
13
PCI card slot
14
Front USB, front panel, and front audio connector
(for connecting USB ports 1 and 2 on the front bezel,
LED indicators and power switch, and microphone and
headphone connectors on the front bezel)
15
SATA connector 1 (SATA 3.0 connector)
16
System fan connector
17
4-pin power connector
18
Microprocessor
.
Chapter 1
Product overview
11