Hey Folks,
First post here. I recently built a new rig for iRacing with the Extreme4 Gen3. I'm new to overclocking but I had little trouble getting my i5 2500k to 4.7GHz with this board. So far I've had no problems with it. The only thing I could use help figuring out is how to disable the onboard USB ports when the system is shut down. Right now anything connected to a USB ports remains powered after shutdown. Any ideas?

Thanks!