114 Appendix
www.dell.com | support.dell.com
7
Disconnect the computer power cable from the electrical outlet, and press the power button
to ground the system board.
8
Open the computer cover (see page 60).
9
Locate the 3-pin password jumper (PSWD) on the system board (see page62) and attach the
jumper to pins 1 and 2 to reenable the password feature.
10
Close the computer cover (see page 99).
NOTICE: To connect a network cable, first plug the cable into the network device and then plug it into
the computer.
11
Connect 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.
1
Follow the procedures in "Before You Begin" on page 53.
2
Reset the current CMOS settings:
a
Locate the 3-pin CMOS jumper (RTCRST) on the system board (see page 62).
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.
3
Close the computer cover (see page 99).
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into
the computer.
4
Connect 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.