Disabling A System Password; Diagnostics; Enhanced Pre-Boot System Assessment (Epsa) Diagnostics - Dell Precision Tower 3420 Owner's Manual

NOTE: If you change the System and/or Setup password, re-enter the new password when
promoted. If you delete the System and/or Setup password, confirm the deletion when
promoted.
5. Press <Esc> and a message prompts you to save the changes.
6. Press <Y> to save the changes and exit from the System Setup.
The computer reboots.

Disabling a System Password

The system's software security features include a system password and a setup password. The password
jumper disables any password(s) currently in use.
NOTE: You can also use the following steps to disable a forgotten password.
1. Follow the procedures in Before Working on Your Computer.
2. Remove the cover.
3. Identify the PSWD jumper on the system board.
4. Remove the PSWD jumper from the system board.
NOTE: The existing passwords are not disabled (erased) until the computer boots without the
jumper.
5. Install the cover.
NOTE: If you assign a new system and/or setup password with the PSWD jumper installed, the
system disables the new password(s) the next time it boots.
6. Connect the computer to the electrical outlet and power-on the computer.
7. Power-off the computer and disconnect the power cable from the electrical outlet.
8. Remove the cover.
9. Replace the PSWD jumper on the system board.
10. Install the cover.
11. Follow the procedures in After Working on Your Computer.
12. Power-on the computer.
13. Go to the system setup, and assign a new system or setup password. See Setting up a System
Password.

Diagnostics

If you experience a problem with your computer, run the ePSA diagnostics before contacting Dell for
technical assistance. The purpose of running diagnostics is to test your computer's hardware without
requiring additional equipment or risking data loss. If you are unable to fix the problem yourself, service
and support personnel can use the diagnostics results to help you solve the problem.

Enhanced Pre-Boot System Assessment (ePSA) Diagnostics

The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware.
The ePSA is embedded with the BIOS and is launched by the BIOS internally. The embedded system
diagnostics provides a set of options for particular devices or device groups allowing you to:
• Run tests automatically or in an interactive mode
• Repeat tests
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