Lenovo 3120 Personal Computer User Manual


 
Figure 2. Rear connector and part locations
1 Power cord connector
10 PCI Express x1 card slots (2)
2 PS/2 keyboard connector 11 PCI card slot
3 DVI monitor connector
12 Optional serial port
4 VGA monitor connector 13 Cable lock slots (2)
5 USB connectors (USB ports 3 to 6) 14 Ethernet connector Serial port
6 Microphone connector
15 Integrated cable lock (Kingston lock) slot
7 Audio line-out connector
16 Cover-release button
8 Audio line-in connector
17 Serial port
9 PCI Express x16 graphics card slot 18 PS/2 mouse connector
Connector Description
Audio line-in connector
Used to receive audio signals from an external audio device, such as a stereo
system. When you attach an external audio device, a cable is connected between
the audio line-out connector of the device and the audio line-in connector of
the computer.
Audio line-out connector
Used to send audio signals from the computer to external devices, such as
powered stereo speakers (speakers with built-in ampliers), headphones,
multimedia keyboards, the audio line-in connector on a stereo system, or other
external recording devices.
DVI monitor connector Used to attach a DVI monitor or other devices that use a DVI monitor connector.
Ethernet connector
Used to attach an Ethernet cable for a local area network (LAN).
Note: To operate the computer within FCC Class B limits, use a Category 5
Ethernet cable.
8 ThinkCentre User Guide