Quote Originally Posted by AstroCreep View Post
Did you try a different PCI slot by chance?
Well...I tried that 2nd to bottom PCI slot and it shared IRQ with my nic (really don't like that).... after some enable/dissable of usb and nic in bios/device manager etc. the X-Fi is now sharing IRQ with different USB controller (onboard header not in use as best I can tell) and the back USB ports now work.

Still have some sharing I don't like (namely video card) but it's not giving me any problems.