I recently bought one of these from Scan and, in the general sense, I am very pleased with it. It is running an i7 3770k with 16GB RAM and is quiet and quick using the auto overclock. I bought this board because I also have a P8Z68-V LX running an i7 2600k, also using the auto overclock, and it has proved very stable.
However, I have a problem with the USB 3.0 backplate connectors that I am very puzzled about. I have a 4TB Touro DeskPro external drive for back up and when I attach the drive using the cable supplied with the drive, it functions perfectly. Because my case does not have a front USB 3.0 connector, I have bought 2 different USB 3.0 extension cables so that I can connect the drive without fuss. When I use either of these extension cables the drive is not even seen nevermind accessible. What is puzzling is that I can use any mix of the cables with the Z68 board and connection is not an issue.
I am using the latest Intel USB drivers on the Z77 board and am at a complete loss to understand what is going on. Has anyone else seen anything similar and/or can offer any ideas about this? I bought the second set of USB 3.0 extension cables believing that the originals were 'fake', but this seems to be nothing to do with it.
Any help would be much appreciated.


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