Removing the Coin-Cell Battery | 37Removing the Coin-Cell BatteryWARNING: Before working inside your computer, read the safety informationthat shipped with your computer and follow the steps in "Before You Begin" onpage 7. After working inside your computer, follow the instructions in "AfterWorking Inside Your Computer" on page 9. For additional safety bestpractices information, see the Regulatory Compliance Homepage atdell.com/regulatory_compliance.WARNING: The coin-cell battery may explode if installed incorrectly.Replace the coin-cell battery only with the same or equivalent type. Discard usedcoin-cell batteries according to the manufacturer’s instructions.CAUTION: Removing the coin-cell battery resets the BIOS settings to default. It isrecommended that you note the BIOS settings before removing the coin-cellbattery.Prerequisites1 Remove the battery. See "Removing the Battery" on page 10.2 Follow step 1 to step 2 in "Removing the Memory Module(s)" on page 12.3 Follow step 1 to step 3 in "Removing the Hard-Drive Assembly" on page 18.4 Follow step 1 to step 2 in "Removing the Optical-Drive Assembly" on page 15.5 Remove the keyboard. See "Removing the Keyboard" on page 21.6 Remove the palm rest. See "Removing the Palm Rest" on page 24.7 Remove the wireless mini-card. See "Removing the Wireless Mini-Card" on page 28.8 Remove the system board. See "Removing the System Board" on page 33.