Originally posted by Ravisher
As for pathways. PCI-Express offers a maximum of 32 lanes. Seen as some manufacturers plan to implement dual PCI-E 16x slots for SLI purposes, you'd say that this could pose somewhat of a problem, because there are no more free lanes for the PCI-E 1x slots. This is not the case however, because the northbridge can handle 32 lanes and any additional lanes will simply be routed thru the southbridge (VIA, I believe was the first to create a PCI-E capable southbridge).
Also, seen as almost everything comes onboard nowadays you won't need to occupy as many expansion slots as before, and even if you do this will not become a problem, because there are plenty of slots available. Most motherboards will still offer 5 regular PCI slots in addition to the PCI-E 16x and PCI-E 1x slots. The advent of BTX somewhere in the near future should remedy some of ATX' component placement and airflow issues anyway.
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