b.If you are removing a PCI Express x1 card, hold the card at each end and carefully rock it back and forth until the connectors pull free from the socket. Lift the card straight up to remove it. Be sure not to scrape the card against other components.

c.If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion socket away from the card and carefully rock the card back and forth until the connectors pull free from the socket. Lift the card straight up to remove it. Be sure not to scrape the card against other components.

6.Store the removed card in anti-static packaging.

7.If you are not installing a new expansion card, install an expansion slot cover to close the open slot.

CAUTION: After removing an expansion card, you must replace it with a new card or expansion slot cover for proper cooling of internal components during operation.

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Chapter 5 Removal and replacement procedures: Tower (TWR)

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HP E1Z77UT E1Z77UT#ABA, E1Z74UT E1Z74UT#ABA, E1Z75UT E1Z75UT#ABA manual