Steps1 With the positive-side facing up, insert the coin-cell battery into the battery socket on the I/O board.2 Press the battery until it clicks into place.Next steps1 Installing the I/O board.2 Installing the CAC reader.3 Installing the battery.4 Installing the base cover.5 Installing the SD memory card.6 Follow the procedure in After working on your thin client.Touch padRemoving the touch pad assemblyPrerequisites1 Follow the procedure in Before working on your thin client.2 Removing the SD memory card.3 Removing the base cover.4 Removing the battery.About this taskThe following image indicates the location of the touch pad assembly and provides a visual representation of the removal procedure:32 Removing and installing components