Hardware reference guide

Removing or Installing an Expansion Card
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 2-12 Expansion Slot Locations
Table 2-2 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. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as diskettes or compact discs, from the computer.
3. Turn off the computer properly through the operating system, then turn off any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
22 Chapter 2 Hardware Upgrades ENWW