Dell Inspiron One 2330 Owner's Manual page 78

Procedure
1 Disconnect the B-CAS card cable from the connector on the B-CAS card.
2 Remove the screw that secures the power-supply fan bracket to the chassis.
3 Lift the power-supply fan bracket off the chassis.
1
2
1 screw
3 B-CAS card cable
78
Power-Supply Fan Bracket
2 power-supply fan bracket
3