30 | Removing the Coin-Cell BatteryRemoving the Coin-Cell BatteryWARNING: Before working inside your computer, read the safety informationthat shipped with your computer and follow the steps in "Before Working InsideYour Computer" on page 7. After working inside your computer, follow theinstructions in "After Working Inside Your Computer" on page 9. For moresafety best practices, see the Regulatory Compliance home page atdell.com/regulatory_compliance.CAUTION: Removing the coin-cell battery resets the BIOS settings to default.It is recommended that you note the BIOS settings before removing thecoin-cell battery.Prerequisites1 Remove the battery. See "Removing the Battery" on page 10.2 Remove the optical-drive assembly. See "Removing the Optical Drive" on page 16.3 Remove the hard-drive assembly. See "Removing the Hard Drive" on page 19.4 Remove the keyboard. See "Removing the Keyboard" on page 22.5 Remove the base cover. See "Removing the Base Cover" on page 27.ProcedureUsing a plastic scribe, gently pry out the coin-cell battery out of the battery socket on thesystem board.1 coin-cell battery 2 plastic scribe21