About this task
To enter the system setup, press F12 immediately after a power-on or reboot.
Steps
1. In the
System BIOS
or
System Setup
screen, select
Security
and press Enter.
The
Security
screen is displayed.
2. Select
System/Admin Password
and create a password in the
Enter the new password
field.
Use the following guidelines to assign the system password:
●
A password can have up to 32 characters.
●
The password can contain the numbers 0 through 9.
●
Only lower case letters are valid, upper case letters are not valid.
●
Only the following special characters are valid: Space, (”), (+), (,), (-), (.), (/), (;), ([), (\), (]), (`).
3. Type the system password that you entered earlier in the
Confirm new password
field and click
OK
.
4. Press Esc and a message prompt's you to save the changes.
5. Press Y to save the changes.
The computer restarts.
Deleting or changing an existing system setup password
Prerequisites
Ensure that the
Password Status
is Unlocked (in the System Setup) before attempting to delete or change the existing
System and/or Setup password. You cannot delete or change an existing System or Setup password, if the
Password Status
is
Locked.
About this task
To enter the System Setup, press F12 immediately after a power-on or reboot.
Steps
1. In the
System BIOS
or
System Setup
screen, select
System Security
and press Enter.
The
System Security
screen is displayed.
2. In the
System Security
screen, verify that
Password Status
is
Unlocked
.
3. Select
System Password
, update, or delete the existing system password, and press Enter or Tab.
4. Select
Setup Password
, update, or delete the existing setup password, and press Enter or Tab.
NOTE:
If you change the System and/or Setup password, reenter the new password when prompted. If you delete the
System and/or Setup password, confirm the deletion when prompted.
5. Press Esc and a message prompts you to save the changes.
6. Press Y to save the changes and exit from System Setup.
The computer restarts.
Clearing CMOS settings
About this task
CAUTION:
Clearing CMOS settings will reset the BIOS settings on your computer.
Steps
1. Remove the
.
2. Disconnect the battery cable from the system board.
3. Remove the
.
4. Wait for one minute.
System setup
119
Summary of Contents for Inspiron 5421
Page 6: ...Chapter 6 Getting help 127 Contacting Dell 127 6 Contents ...
Page 14: ...Major components of your system 1 Base cover 14 Removing and installing components ...
Page 21: ...Removing and installing components 21 ...
Page 70: ...70 Removing and installing components ...
Page 72: ...72 Removing and installing components ...
Page 73: ...Removing and installing components 73 ...
Page 78: ...78 Removing and installing components ...
Page 79: ...Removing and installing components 79 ...
Page 82: ...82 Removing and installing components ...
