Matrox Rapixo CXP Installation And Hardware Reference page 21

Matrox Rapixo CXP might drop frames if the PCIe slot does not have at least 8
active lanes (for example, if the board is connected to a x8 PCIe slot that has only
*
four active lanes ). Verify with your motherboard manufacturer to find out
whether your motherboard works efficiently with a x8 PCIe board, such as Matrox
Rapixo CXP.
If you need to install the HD-15 cable adapter bracket, you will need an additional
slot. This slot does not need to be adjacent to the Matrox Rapixo CXP board. In
addition, the cable adapter bracket does not plug into a slot's connector; it attaches
only to the back of the computer's chassis.
❖ Note that the external auxiliary I/O connectors on the cable adapter bracket are
panel mount connectors. If you don't want to occupy an entire slot for the bracket,
you can punch out two holes in the computer chassis, and then screw the
connectors in the holes.
*. After installing the board, you can verify in software the number of PCIe lanes that are
currently active, using the MIL-Lite function MsysInquire() with
M_PCIE_NUMER_OF_LANES. You can also verify this through the MILConfig,
utility on the Boards page.
Installing your Matrox Rapixo CXP board 21