hi to all computer experts out their. my sapphire r9 290 tri-x 4gb ddr5 512bit was undetected by my asrock p67 pro3 motherboard biose version 3.30... when i start my cpu it has no display only black screen. d6 code with 5 short beeps. i try my gt 440 2gb 128bit ddr3 gpu, it works and display... my power supply is seasonic m2ii evo 750w full modular. any solution or fix for my problem? execpt in throwing my r9 to a garbage can.... thanks in advance....