Dell Dimension 9150 Owner's Manual page 86

15 If you installed an add-in network adapter and want to disable the integrated network
adapter:
Enter system setup select Integrated NIC Controller, and then change the setting
a
to Off.
Connect the network cable to the add-in network adapter's connectors. Do not connect
b
the network cable to the integrated connector on the back panel.
16 Install any drivers required for the card as described in the card documentation.
Removing a PCI Express Card
1 Follow the procedures in "Before You Begin" on page 63.
2 Remove the computer cover (see page 68).
release tabs (2)
card retention
door
3 If present on your computer, rotate the lever on the chassis wall upward.
86
Removing and Installing Parts
alignment bar
alignment guide
filler bracket
*may not be present on all computers
*lever on chassis wall