Clearing cmos settings – Dell XPS 720 (Mid 2007) User Manual
Page 175
Appendix
175
6 After the Microsoft
®
Windows
®
desktop appears on your computer, turn the computer off:
a
Save and close all open files and exit all open programs.
b
Shut down the operating system:
•
In Windows XP, click Start
→
Turn Off Computer
→
Turn off.
•
In Windows Vista,
click Start
, click the arrow in the lower-right corner of the Start menu
as shown below, and then click Shut Down.
The computer turns off after the operating system shutdown process is complete.
NOTE:
Ensure that the computer is off and not in a power management mode. If you cannot shut down the
computer using the operating system, press and hold the power button for 4 seconds.
7 Disconnect the keyboard and mouse, then disconnect the computer and monitor from their electrical
outlets.
8 Press the power button on the computer to ground the system board.
9 Open the computer cover (see "Removing the Computer Cover" on page 86).
NOTICE:
The password jumper plug must be reinstalled on the password jumper pins in order to enable the
password feature.
10 Locate the 2-pin password jumper on the system board (see "System Board Components" on page 89),
and then reinstall the jumper plug to enable the password feature.
11 Replace the computer cover (see "Replacing the Computer Cover" on page 159).
NOTICE:
To connect a network cable, first plug the cable into the network wall jack and then plug it into the
computer.
12 Connect your computer and devices to electrical outlets, and then turn them on.
NOTE:
In system setup (s
"Entering System Setup" on page 166
)
, both system and administrator password
options appear as
Not Set. The password feature is enabled but a password is not assigned.
Clearing CMOS Settings
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product
Information Guide.
NOTE:
This procedure does not clear or reset system and setup passwords.
1 Follow the procedures in "Before You Begin" on page 85.
2 Remove the computer cover (see "Removing the Computer Cover" on page 86).
3 Locate the password (PASSWORD) and CMOS (RTCRST) jumpers on the system board (see