Dell 23.8" OptiPlex 7410 All-in-One Desktop Computer (Gray) - Manual (Page 124)

Steps
1. Follow the pre-requisites and procedures in Removing the coin-cell battery .
2. Wait for one minute.
3. Follow the procedures and post-requisites in
Installing the coin-cell battery .
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.
124 BIOS setup