Dell OptiPlex 3010 (Mid 2012) - Manual (Page 6)

Figure 7. VGA Connector
2. Connect the USB keyboard or mouse (optional).
Figure 8. USB Connection
3. Connect the network cable (optional).
Figure 9. Network Connection
4. Connect the power cable(s).
Figure 10. Connecting Power
5. Press the power buttons on the monitor and the computer.
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