Lenovo THINKCENTRE 6019 - Manual (Page 90)

Locations
This section provides illustrations to help locate the various connectors, controls,
and components of the computer.
Front connectors
Note: Not all computer models will have the following controls and connections.
1 Diskette drive (some models) 6 USB connector
2 Power button 7 Microphone connector
3 Hard-disk-drive activity indicator 8 Headphone connector
4 Power-on indicator 9 USB connector
5 Optical drive (some models)
84 Hardware Maintenance Manual