Expansion slot numbering at Matrox

All Matrox cards are installed in your computer's expansion slots. Most computers currently manufactured have an AGP slot, several PCI slots, and in some cases, ISA slots. AGP and PCI slots are shorter in length than ISA slots; as well, the different types of slots are usually of contrasting color.

While some computer motherboards have numbered slots, these do not follow any standard industry convention. In addition, one computer may have an AGP slot, five PCI slots and no ISA slots, whereas another may have an AGP slot, four PCI slots and two ISA slots, and so on. With this in mind, we've developed a numbering scheme for identifying each slot position.

Computers with AGP and PCI slots only

In the case of computers with AGP and PCI slots only, locate the PCI slot furthest from the AGP slot, then begin counting the PCI slots toward the AGP slot (for example, P1, P2, P3, etc.). In the following diagram, there are five PCI slots and an AGP slot:

Computers with AGP, PCI, and ISA slots

If your computer has AGP, PCI, and ISA slots, begin counting PCI slots outward from the "border" between the PCI and ISA slots, as illustrated in the following diagram:

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