HP EliteDesk 800 G4 Maintenance and Service Guide - Page 34

Expansion card

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Expansion card For a list of available expansion cards, see Computer major components on page 4. The computer has two PCI Express x1 expansion sockets, one PCI Express x16 expansion socket, and one PCI Express x16 expansion socket that is downshifted to a x4 socket. NOTE: The PCI Express sockets support only low profile cards. You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 socket. For dual graphics card configurations, the first (primary) card must be installed in the PCI Express x16 socket that is NOT downshifted to a x4. 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. Locate the correct vacant expansion socket on the system board and the corresponding expansion slot on the back of the computer chassis. 4. 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. 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, remove the appropriate expansion slot cover on the back of the chassis. Pull the slot cover straight up then away from the inside of the chassis. 26 Chapter 4 Removal and replacement procedures

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Expansion card
For a list of available expansion cards, see
Computer major components
on page
4
.
The computer has two PCI Express x1 expansion sockets, one PCI Express x16 expansion socket, and one PCI
Express x16 expansion socket that is downshifted to a x4 socket.
NOTE:
The PCI Express sockets support only low
profile
cards.
You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 socket.
For dual graphics card
configurations,
the
first
(primary) card must be installed in the PCI Express x16 socket
that is NOT downshifted to a x4.
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.
Locate the correct vacant expansion socket on the system board and the corresponding expansion slot
on the back of the computer chassis.
4.
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.
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, remove the appropriate expansion slot
cover on the back of the chassis. Pull the slot cover straight up then away from the inside of the
chassis.
26
Chapter 4
Removal and replacement procedures