CHAPTER 4: Upgrading Your Computer

4If you are replacing an expansion card, remove the old card. You can slightly seesaw the card end-to-end to loosen the card, but do not bend the card sideways.

Caution

Do not touch the contacts on the bottom part of the expansion card. Touching the contacts can cause electrostatic damage to the card.

5Install the new card into the expansion slot. You can slightly seesaw the card end-to-end to help insert the card, but do not bend the card sideways.

6If you have just replaced an expansion card, reconnect the expansion card cables (if any) using your notes from Step 2. If you have added a new expansion card, connect its cables according to its user guide.

7Press the card retention lever back into place.

8Replace the side panel by following the instructions in “Replacing the side panel” on page 37.

Replacing the system battery

Warning

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries following the manufacturer’s instructions.

If the computer clock does not keep time or the settings in the BIOS Setup utility are not saved when you turn off your computer, replace the system battery. Use a battery of the same size and voltage as the original battery that was in your computer.

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