Lenovo M4350 Desktop - Manual (Page 14)

Connector Description
Microphone connector Used to attach a microphone to your computer when you want to record sound or if
you use speech-recognition software.
Serial port Used to attach an external modem, a serial printer, or other devices that use a
9-pin serial port.
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 4 shows the locations of the parts on the system board.
Figure 3. System board part locations
1 4-pin power connector 11 Front USB connector 1 (for connecting USB ports on the
front bezel)
2 Microprocessor 12 Clear CMOS (Complementary Metal Oxide Semiconductor)
/Recovery jumper
3 Microprocessor fan connector 13 Front USB connector 2 (for connecting an additional USB
device)
4 Memory slot 1 (DIMM1) 14 Battery
5 Memory slot 2 (DIMM2) 15 Serial (COM2) connector
6 Thermal sensor connector 16 Front audio connector
4 Lenovo M4350 User Guide