Port 1 should be a native H67 port, so you shouldn't be having this issue. Can you post a picture of the motherboard's SATA ports? When the computer is on its side away from you and you are looking directly into it, the ports you want to plug into should be the farthest away from you. It's hard to explain. A picture would be easier.
EDIT: It's plugged into one end of the bunch of ports, so try plugging in to the other end. Sometimes motherboards arrange them differently so you might check your manual. Do your SATA ports look like this?