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Service Reference Guide, dx7300 433611-001 7–15
Removal and Replacement Procedures— Slim Tower (ST) Chassis
7.9.2 PCI Expansion Card
1. If you have locked the Smart Cover Lock, restart the computer and enter Computer Setup to
unlock the lock.
2. Turn off the computer properly through the operating system, then turn off any external
devices.
3. Disconnect the power cord from the power outlet and disconnect any external devices.
4. Remove the computer cover. (Section 7.5).
5. Identify the slot into which you want to insert the expansion card.
6. Release the slot cover retention latch that secures the PCI slot covers by lifting the green tab
on the latch and rotating the latch to the full open position 1.
7. Remove the slot cover by sliding it up and out of the computer 2.