Join Date: Aug 2011
Location: Within the Milky Way
Nah. You have physical PCIe lanes, and each lane has electrically wired for a certain amount of lanes. So, you can have an x16 lane wired to x8 or something. Some boards have a bottom fullsize x16 slot, but is electrically wired to x4. Just depends on the motherboard.
Oh yeah, and then you have some x4 and x8 physical slots, but the end of the slot is open
so you can fit longer slots in it. You also have some PCIe devices that use a full x16 slot, but only have traces for x4 or x8 of them. So yeah, PCIe is a pretty flexible interface.
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Last edited by airisom2; 03-22-2019 at 06:08 PM.