Adding and Replacing Parts 129c Using your thumbs, slide the battery in the direction of the #2 arrow by inserting one thumb intothe recess next to the battery access door and the other thumb into the indention surroundingthe #2.d Lift the battery straight up and out of the computer.6 Press the power button to ground the system board.7 Remove any installed ExpressCards or media memory cards. See "Removing a Card" on page 83.MemoryYou can increase your computer memory by installing memory modules on the system board. See"Specifications" on page 137 for information on the memory supported by your computer. Install onlymemory modules that are intended for your computer.NOTE: Memory modules purchased from Dell are covered under your computer warranty.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the ProductInformation Guide.