Lenovo ThinkCentre M72e Hardware Maintenance Manual (HMM) - Page 74
Locating connectors on the rear of your computer, connect the cables on your computer. - pci
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Locating connectors on the rear of your computer Figure 2 "Rear connector locations" on page 70 shows the locations of the connectors on the rear of your computer. Some connectors on the rear of your computer are color-coded to help you determine where to connect the cables on your computer. Figure 2. Rear connector locations 1 Voltage-selection switch (available on some models) 2 Power cord connector 3 PS/2 keyboard connector 4 DVI monitor connector 5 VGA monitor connector 6 USB connectors (USB ports 3 to 6) 7 Microphone connector 8 Audio line-out connector 9 Audio line-in connector 10 PCI Express x16 graphics card slot 11 PCI Express x1 card slot 12 PCI Express x1 card slot or PCI card slot 13 Integrated cable lock (Kingston lock) slot 14 Padlock loop 15 Optional serial port (Serial port 2) 16 Ethernet connector 17 Serial port (Serial port 1) 18 PS/2 mouse connector Connector Audio line-in connector Audio line-out connector Description 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. Used to send audio signals from the computer to external devices, such as powered stereo speakers (speakers with built-in amplifiers), headphones, multimedia keyboards, or the audio line-in connector on a stereo system or other external recording device. 70 ThinkCentre Hardware Maintenance Manual