Dell XPS 400 Clearing Cmos Settings, Cleaning Your Computer, Computer, Keyboard, and Monitor, 122

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10Close the computer cover (see page 107).

NOTICE: To connect a network cable, first plug the cable into the network device and then plug it into the computer.

11Connect your computer and devices to electrical outlets, and turn them on.

Clearing CMOS Settings

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

1Follow the procedures in "Before You Begin" on page 63.

2Reset the current CMOS settings:

a Locate the 3-pin CMOS jumper (RTCRST) on the system board (see page 71). b Remove the jumper plug from pins 2 and 3.

c Place the jumper plug on pins 1 and 2 and wait approximately five seconds. d Replace the jumper plug on pins 2 and 3.

3Close the computer cover (see page 107).

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.

4Connect your computer and devices to electrical outlets, and turn them on.

Cleaning Your Computer

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

Computer, Keyboard, and Monitor

CAUTION: 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 aerosol cleaners, which may contain flammable substances.

•Use a vacuum cleaner with a brush attachment to gently remove dust from the slots and holes on your computer and from between the keys on the keyboard.

NOTICE: Do not wipe the display screen with any soap or alcohol solution. Doing so may damage the antiglare coating.

•To clean your monitor screen, lightly dampen a soft, clean cloth with water. If possible, use a special screen-cleaning tissue or solution suitable for the monitor’s antistatic coating.

•Wipe the keyboard, computer, and plastic part of the monitor with a soft cleaning cloth moistened with a solution of three parts water and one part dishwashing detergent.

Do not soak the cloth or let water drip inside your computer or keyboard.

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Appendix