I have an ASUS Z170 Pro Gaming mobo with an i5-6600 and an ASUS R9 290. When I try and put the card in the mobo, the handle next to the PCIe slot goes up to the fixed position and the GPU seems to be inserted, but the screw hole doesn't line up with the screw hole on the case, and I have to push it slightly to get the screw in. When I turn it on, the fans spin up but it gives no signal. However, if I put the HDMI cable into the mobo instead of the GPU, Windows appears using Intel HD Graphics rather than Radeon R9 290. What can I do?