Hardware Reference Guide
Removing or installing an expansion card
The computer has one PCI Express ×1 expansion socket and one PCI Express x16 expansion socket.
NOTE: The PCI Express sockets support only low prole cards.
You can install a PCI Express ×1, ×4, ×8, or ×16 expansion card in the PCI Express ×16 socket.
For dual graphics card congurations, the rst (primary) card must be installed in the PCI Express ×16 socket.
To remove, replace, or add an expansion card:
1. Remove or disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as compact discs or USB ash drives, from the computer.
3. Turn o the computer properly through the operating system, and turn o any external devices.
4. Disconnect the power cord from the AC outlet and disconnect any external devices.
IMPORTANT: Regardless of the power on state, voltage is always present on the system board as long
as the system is plugged into an active AC outlet. To prevent damage to internal components, you must
disconnect the power cord from the power source before opening the computer.
5. If the computer is on a stand, remove the computer from the stand.
6. Remove the computer access panel.
7. Locate the correct vacant expansion socket on the system board and the corresponding expansion slot
on the back of the computer chassis.
8. Rotate the slot cover retention latch that secures the slot covers to the open position.
9. Before installing an expansion card, remove the expansion slot cover or the existing expansion card.
NOTE: Before removing an installed expansion card, disconnect any cables that are attached to the
expansion card.
Removing or installing an expansion card 17