Dell Dimension 2010 Setup Guide - Page 69
General Power Safety
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Appendix A: Safety, Environmental, and Regulatory Information General Power Safety Observe the following guidelines when connecting your equipment to a power source: • Check the voltage rating before you connect the equipment to an electrical outlet to ensure that the required voltage and frequency match the available power source. • Your device is equipped with either an internal power source or an external adapter. For internal power sources, your device is equipped with one of the following: --An auto-sensing voltage circuit - Devices with an auto-sensing voltage circuit do not have a voltage selection switch on the back panel and automatically detect the correct operating voltage. --A manual voltage selection switch Devices with a voltage selection switch on the back panel must be manually set to operate at the correct operating voltage. Set the switch to the position that most closely matches the voltage used in your location. NOTE: The switch on your system may be different than the one pictured. CAUTION: To help avoid damaging a computer with a manual voltage selection switch, set the switch for the voltage that most closely matches the AC power available in your location. • To prevent electric shock, plug the equipment power cables into properly grounded electrical outlets. If the equipment is provided with a 3-prong power cable, do not use adapter plugs that bypass the grounding feature, or remove the grounding feature from the plug or adapter. 67