108 AppendixNOTICE: To connect a network cable, first plug the cable into the network device and then plug it intothe computer.11 Connect your computer and devices to electrical outlets, and turn them on.Clearing CMOS SettingsCAUTION: Before you begin any of the procedures in this section, follow the safety instructionslocated in the Product Information Guide.1 Follow the procedures in "Before You Begin" on page 55.2 Remove the hard drive (see page 76).3 Reset the current CMOS settings:a Locate the 3-pin CMOS jumper (RTCRST) on the system board (see page 107).b Remove the jumper plug from pins 2 and 3.c Place the jumper plug on pins 1 and 2 and wait approximately 5 seconds.d Replace the jumper plug on pins 2 and 3.4 Replace the hard drive (see page 77).5 Replace the computer cover (see "Replacing the Computer Cover" on page 93).NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it intothe computer.6 Connect your computer and devices to electrical outlets, and turn them on.Cleaning Your ComputerCAUTION: Before you begin any of the procedures in this section, follow the safety instructionslocated in the Product Information Guide.Computer, Keyboard, and MonitorCAUTION: Before you clean your computer, disconnect the computer from the electrical outlet. Cleanyour computer with a soft cloth dampened with water. Do not use liquid or aerosol cleaners, which maycontain flammable substances.• Use a vacuum cleaner with a brush attachment to gently remove dust from the slots and holeson your computer and from between the keys on the keyboard.