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Removal and replacement procedures 22
4.
Remove the expansion slot cover.
CAUTION: To prevent improper cooling and thermal damage, do not operate the server unless all PCI slots
have either an expansion slot cover or an expansion board installed.
To replace the component, reverse the removal procedure.
Expansion board
CAUTION: To prevent damage to the server or expansion boards, power down the server and remove all
AC power cords before removing or installing the expansion boards.
To remove the component:
1. Power down the server ("Powering down the server" on page 13).
2. Do one of the following:
• Unlock and remove the bezel ("Front bezel (tower model)" on page 15).
• Extend the server from the rack ("Extending the server from the rack" on page 13).
3. Remove the access panel ("Access panel" on page 14).