HP Compaq dc7900 USDT Specifications download pdf (Page 144)

Expansion Cards

The computer has one PCI expansion slot, one PCI Express x1 expansion slot, one PCI Express x16

expansion slot, and one PCI Express x16 expansion slot that is downshifted to a x4 slot.

NOTE: The PCI and PCI Express slots support only low profile cards. An optional PCI riser card with

two full height standard PCI slots is available from HP.

Figure 8-15 Expansion Slot Locations

Table 8-2 Expansion Slot Locations

Item Description

1 PCI expansion slot

2 PCI Express x16 expansion slot that is

downshifted to a x4 slot

3 PCI Express x16 expansion slot

4 PCI Express x1 expansion slot

NOTE: You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 slots.

For dual graphics card configurations, the first (primary) card must be installed in the PCI Express x16

slot that is NOT downshifted to a x4 slot.

To install an expansion card:

1. Prepare the computer for disassembly (

Preparation for Disassembly on page 118).

2. Remove the access panel (

Computer Access Panel on page 125).

3. Locate the correct vacant expansion socket on the system board and the corresponding expansion

slot on the back of the computer chassis.

132 Chapter 8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

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HP Compaq dc7900 USDT Specifications Page 144