Installing An Expansion Card - HP dx7400 - Microtower PC Hardware Reference Manual

Installing an Expansion Card

The computer has one standard PCI expansion slot that can accommodate an expansion card up to
17.46 cm (6.875 inches) in length. The computer also has two PCI Express x1 expansion slots and one
PCI Express x16 expansion slot.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as diskettes or compact discs, from the computer.
3. Turn off the computer properly through the operating system, then turn off any external devices.
4. Disconnect the power cord from the power outlet and the computer, and disconnect any external
devices.
WARNING!
to the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces,
be sure to disconnect the power cord from the wall outlet and allow the internal system components
to cool before touching.
5. Remove the access panel and lay the computer on its side with the opening to internal parts facing
up.
6. On the rear panel of the computer, remove the screw that secures the slot cover lock in place (1)
and slide the slot cover lock up and away from the slots to remove it from the computer (2).
Figure 2-6
7. If you are installing an expansion card for the first time, you must use a flatblade screwdriver to pry
out the metal shield on the rear panel that covers the expansion slot. Be sure to remove the
appropriate shield for the expansion card you are installing.
Removable Shield
Top shield
Second shield
Third shield
Bottom shield
ENWW
When the computer is plugged into an AC power source, voltage is always applied
Releasing the Slot Cover Lock
Expansion Card Type
PCI Express x16
PCI Express x1
PCI Express x1
PCI
Installing an Expansion Card 11