Dell Precision T5400 (Late 2007) - Manual (Page 102)

102 Clearing Forgotten Passwords
2 Remove the computer cover (see "Removing the Computer Cover" on
page 153).
3 Locate the 2-pin password jumper (PSWD) on the system board, and
remove the jumper plug; set the plug aside. For help locating the jumper,
see "System Board Components" on page 28.
NOTE: When you receive your computer, the password jumper plug is on the
password jumper.
4 Replace the computer cover (see "Replacing the Computer Cover" on
page 161).
5 Connect your computer and monitor to electrical outlets, and turn them
on.
6 After the Microsoft ® Windows ® desktop appears on your computer, shut
down your computer (see "Turning Off Your Computer" on page 151).
7 Turn off the monitor and disconnect it from the electrical outlet.
8 Disconnect the computer power cable from the electrical outlet, and press
the power button to ground the system board.
9 Remove the computer cover (see "Removing the Computer Cover" on
page 153).
10 Locate the 2-pin password jumper on the system board and attach the
jumper plug to its pins to re-enable the password feature. For more
information see "System Board Components" on page 28.
11 Replace the computer cover (see "Replacing the Computer Cover" on
page 161).
NOTICE: To connect a network cable, first plug the cable into the network port or
device and then plug it into the computer.
12 Connect your computer and devices to electrical outlets, and turn them
on.
NOTE: This procedure enables the password feature. When you enter the
system setup program (see "System Setup" on page 89), both system and
administrator password options appear as Not Set—meaning that the password
feature is enabled but no password is assigned.
13 Assign a new system and/or setup password. See "Passwords" on page 78.