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Connector Description
USB connector Used to attach a device that requires a USB connector, such as a USB keyboard, a
USB mouse, a USB scanner, or a USB printer. If you have more than eight USB
devices, you can purchase a USB hub, which you can use to connect additional
USB devices.
VGA monitor connector Used to attach a VGA monitor or other devices that use a VGA monitor connector.
Locating parts on the system board
Figure 3 “System board part locations” on page 11 shows the locations of the parts on the system board.
Figure3. System board part locations
1 4-pin power connector
14 Front panel connector for power switch and LED indicators
2 Microprocessor fan connector
15 Front USB connector 1 (for connecting USB port 1 and 2
on the front bezel)
3 Memory slot 1 (DIMM1) 16 Front USB connector 2 (for connecting additional USB
devices)
4 Memory slot 2 (DIMM2) 17 Clear CMOS (Complementary Metal Oxide Semiconductor)
/Recovery jumper
5 Memory slot 3 (DIMM3)
18 Internal speaker connector
6 Memory slot 4 (DIMM4) 19 Front audio connector (for connecting the microphone and
headphone connectors on the front bezel)
7 Thermal sensor connector
20 PCI card slots (2)
8 24-pin power connector
21 PCI Express x1 card slot
9 Battery
22 PCI Express x16 graphics card slot
Chapter 4. Locating parts, controls, and connectors 11