I wonder if anyone will answer a question for a friend of mine.
A mate plays games like World of Warcraft and Startrek online and hes been suffering from lag and his ISP (Sky Fibre) say its not them hes on their upto 72mb package i think he said.
The PC was custom built by a firm which is local to where he lives and they have said that it is possible the onboard ethernet and a seperate ethernet card either an Intel based or a killer ethernet would maybe help his problem.
This is the motherboard that is in his computer
http://www.asrock.com/mb/AMD/990FX%20Extreme4/
It uses Broadcom BCM57781