> the X5000 use perfectly modern hardware AFAIK.

DDR3, PCIe v2, SATA2 and USB2 are all at least one generation behind.

> once they got those stuff working there it will be a lot less work to port
> to another CPU.

I don't see how this will benefit an ISA switch, the hard part of which has nothing to do with support for above-mentioned subsystems.