I hooked my IBM X31 laptop with Gigabit Ethernet directly to the Nforce4 Gigabit Lan controller (if I remember correctly as it is the only one that supportse PCI Marvell c auto crossover) and after setting an automatic private IP address I was able to connect the two machines. I realize that nobody gets anywhere close to 100% but I think 8-13% (80-130Mbps) is way too slow. This was reported by task manager in the connections tab. Is anyone using the this controller and getting the expected speeds (maybe 200-350Mbps)? Maybe there's some issue with the drivers or something?