EMC P/N 300-002-803 manual PCI Express slots

Installation Steps

throughput. Because of how PCI Express slots are keyed, an x1 adapter can be inserted in all four slot types, as the adapter will negotiate with the slot to determine the highest mutually supported number of lanes. However, an adapter requiring x16 lanes will not fit into a smaller slot.

Figure 4 PCI Express slots

Figure 5 shows x1, x4, and x16 lane slots aligned on a mainboard. You can see how the slots are keyed so that low-lane adapters can fit into larger slots.

Figure 5 PCI Express slots aligned

Installing the adapter

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