Dell 5150C Clearing Cmos Settings, Cleaning Your Computer, Computer, Keyboard, and Monitor, 108

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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 located in the Product Information Guide.

1Follow the procedures in "Before You Begin" on page 55.

2Remove the hard drive (see page 76).

3Reset 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.

4Replace the hard drive (see page 77).

5Replace 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 into the computer.

6Connect 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 located 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.

Appendix