Dell Precision M4400 Service Manual

Also see for M4400 - Precision Mobile Workstation: Manual How-to guide How-to guide System Board Replacement How-to guide

Contents

Dell Precision M4400 Service Manual Manual pdf 10 page image

Back to Contents PageCoin-Cell BatteryDell Precision™ Service ManualRemoving the Coin-Cell BatteryReplacing the Coin-Cell BatteryRemoving the Coin-Cell Battery1. Follow the procedures in Before Working on Your Computer.2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).3. Pry up the coin-cell battery to release the double-sided adhesive tape on the bottom.4. Lift the coin-cell battery out of the computer.5. Disconnect the coin-cell battery cable from the system board.Replacing the Coin-Cell Battery1. Connect the coin-cell battery cable to the system board.2. Insert the coin-cell battery into the computer.3. If you are re-installing the old coin-cell battery, press down to secure the tape to the base assembly.4. Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly).5. Follow the procedure After Working on Your Computer.Back to Contents PageCAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.NOTICE: Disconnecting the coin-cell battery from the system board with no other power source causes the BIOS to reset to the default configurationand sets the realtime clock to the build date. System configuration changes made in the BIOS by the user must be re-entered, and the system clockmust be set.1 battery cable connector 2 coin-cell batteryCAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.