Expansion cards
The computer has three PCI Express x1 expansion sockets and one PCI Express x16 expansion socket.
NOTE: You can install a PCI Express x1, x8, or x16 expansion card in the PCI Express x16 socket.
For dual graphics card congurations, the rst (primary) card must be installed in the PCI Express x16 socket.
To remove, replace, or add an expansion card:
1. Prepare the computer for disassembly (Preparation for disassembly on page 17)
2. Remove the access panel (Access panel on page 18)
3. Release the slot cover retention latch that secures the slot covers by lifting the tab on the latch and
rotating the latch to the open position.
4. Locate the correct vacant expansion socket on the system board and the corresponding expansion slot
on the back of the computer chassis.
5. 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 may be attached to
the expansion card.
a. If you are installing an expansion card in a vacant socket, you must slide one of the expansion slot
covers up and out of the chassis or use a at-bladed screwdriver to pry out one of the metal
shields on the rear panel that covers the expansion slot. Be sure to remove the appropriate shield
for the expansion card you are installing.
26 Chapter 4 Removal and replacement procedures
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