On the host card, at the top center, there is a section  not covered by the Heatsink.  There is a chip, and bank of jumpers, and a set of 2 jumpers seperate marked as JP20.  With the power off, put a jumper on the 2 pins, install the card and power on the PC.  There is a light on the top of the card "Heartbeat LED" it will post solid, then blink once.  Once it has blinked, the card is reset.  Power down the PC and remove the jumper, then restart the PC and you should be able to access it and reconfigure the device.