HP Desktop Pro A G2 Maintenance and Service Guide - Page 28

Expansion cards

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Expansion cards The computer has one PCI Express ×1 expansion socket, one PCI Express ×16 expansion socket, and one PCI expansion socket. Item (1) (2) (3) Expansion slot PCI Express 3.0, ×16 PCI Express 2.0, ×1 PCI 2.3 NOTE: You can install a PCI Express ×1, ×8, or ×16 expansion card in the PCI Express ×16 socket. For dual graphics card configurations, the first (primary) card must be installed in the PCI Express ×16 socket. To remove, replace, or add an expansion card: 1. Prepare the computer for disassembly (Preparation for disassembly on page 16). 2. Remove the access panel (Access panel on page 17) 3. Locate the correct vacant expansion socket on the system board and the corresponding expansion slot on the back of the computer chassis. 4. 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 removing a PCI Express ×16 card, remove the Torx screw that secures the card to the back of the chassis (1). Pull the retention arm on the back of the expansion socket (2) away from 20 Chapter 4 Removal and replacement procedures

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Expansion cards
The computer has one PCI Express ×1 expansion socket, one PCI Express ×16 expansion socket, and one PCI
expansion socket.
Item
Expansion slot
(1)
PCI Express 3.0, ×16
(2)
PCI Express 2.0, ×1
(3)
PCI 2.3
NOTE:
You can install a PCI Express ×1, ×8, or ×16 expansion card in the PCI Express ×16 socket.
For dual graphics card
configurations,
the
first
(primary) card must be installed in the PCI Express ×16 socket.
To remove, replace, or add an expansion card:
1.
Prepare the computer for disassembly (
Preparation for disassembly
on page
16
).
2.
Remove the access panel (
Access panel
on page
17
)
3.
Locate the correct vacant expansion socket on the system board and the corresponding expansion slot
on the back of the computer chassis.
4.
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 removing a PCI Express ×16 card, remove the Torx screw that secures the card to the
back of the chassis
(1)
. Pull the retention arm on the back of the expansion socket
(2)
away from
20
Chapter 4
Removal and replacement procedures