Maximus VI Hero USB 3.0 Problem

[Aelian]

Hi.

I just got the VI Hero and having some trouble when trying to plug a USB 2.0 WiFi adapter on the USB 3.0 ports on the back. None of the ports accepts the device.

Anyone knows what the problem could be? And maybe how I could fix it?

I already googled about it but didn't seem like there is anything.

[cnick6]

I have similar issues with an USB 2.0 device. The new Haswell chipset uses this newer xHCI USB controller which does some funky things. I think it's confusing older USB 2.0 devics and/or it could be an OS issue. (I'm using WIn7-64.)

In any case, I have to go into the BIOS and disable the on-board xHCI controller. I leave USB Legacy Support enabled but disable the next two devices. The only downside is that I believe this disables USB 3.0 functionality. I haven't confirmed this but it appears to as device manager doesn't see the USB 3.0 PNP-IDs.

[HiVizMan]

Please do try what cnick6 suggested and post back if if sorted your issue.