CAU TION: Safe ty Instr uc tions 9CAUTION: Safety InstructionsUse the following safety guidelines to help ensure your own personal safety and to help protectyour computer and working environment from potential damage.General• Do not attempt to service the computer yourself unless you are a trained servicetechnician. Always follow installation instructions closely.• To help prevent electric shock, plug the computer and device power cables into properlygrounded electrical outlets. These cables are equipped with 3-prong plugs to help ensureproper grounding. Do not use adapter plugs or remove the grounding prong from a cable.If you must use an extension cable, use a 3-wire cable with properly grounded plugs.• To help avoid the potential hazard of electric shock, do not use your computer during anelectrical storm.• To help avoid the potential hazard of electric shock, do not connect or disconnect anycables or perform maintenance or reconfiguration of this product during an electricalstorm.• If your computer includes a modem, the cable used with the modem should bemanufactured with a minimum wire size of 26 American wire gauge (AWG) and an FCC-compliant RJ-11 modular plug.• Before you clean your computer, disconnect the computer from the electrical outlet.Clean your computer with a soft cloth dampened with water. Do not use liquid or aerosolcleaners, which may contain flammable substances.• To help avoid possible damage to the system board, wait 5 seconds after turning off thecomputer before disconnecting a device from the computer.