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4Open the card retention lever.

Card retention lever

5Remove the old expansion 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.

6Install 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.

7If you have just replaced an expansion card, reconnect the expansion card cables (if any) using your notes from Step 3. If you have added a new expansion card, connect its cables according to its user guide.

8Replace the side panel by following the instructions in “Replacing the side panel” on page 33.

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