Dell Inspiron 5405, Service Manual

Page: 69 / 76

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 base cover .
NOTE: Ensure that the battery cable is disconnected from the system board.
2. Remove the coin-cell battery .
3. Wait for one minute.
4. Install the
coin-cell battery .
5. Install the base cover .
Clearing BIOS (System Setup) and System passwords
About this task
To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell .
NOTE: For information on how to reset Windows or application passwords, refer to the documentation accompanying
Windows or your application.
Updating the BIOS
Updating the BIOS in Windows
Steps
1. Go to www.dell.com/support .
2. Click Product support . In the Search support box, enter the Service Tag of your computer, and then click Search .
NOTE: If you do not have the Service Tag, use the SupportAssist feature to automatically identify your computer. You
can also use the product ID or manually browse for your computer model.
3. Click Drivers & Downloads . Expand Find drivers .
4. Select the operating system installed on your computer.
5. In the
Category drop-down list, select BIOS .
6. Select the latest version of BIOS, and click Download to download the BIOS file for your computer.
7. After the download is complete, browse the folder where you saved the BIOS update file.
8. Double-click the BIOS update file icon and follow the on-screen instructions.
For more information, see knowledge base article 000124211 at www.dell.com/support .
System setup 69