Locating connectors, controls, and indicators on the front of your
computer
Figure 1 “Front connector, control, and indicator locations” on page 74 shows the locations of the
connectors, controls, and indicators on the front of your computer.
Figure 1. Front connector, control, and indicator locations
1 Hard disk drive activity indicator
5 USB connector (USB port 1)
2 Power indicator 6 Headphone connector
3 Power switch 7 Microphone connector
4 Optical drive eject/close button 8 USB connector (USB port 2)
74 ThinkCentre Hardware Maintenance Manual