I took my h100i off the board to attach it like the picture and now it's not working , doh.
I'm getting a libusb error pipe, libusb not found error.
Hashfast detect failed to initialize incorrect device.
The device keeps adding and disabling the device with those previous errors.
I'm using minepeon 2.4.6 with cgminer 4.3.4.
I also had this problem when I wasn't getting enough air flow across the board. Make sure the tubing's not contacting the board preventing cool air from getting to the components.