Hello ! My gigabyte rx550 is not working properly. So i bought the gigabyte rx550, installed it on the first mobo's rail and when i put it in it gave me a red light i tried fiddling around with it but the red light kept terrorizing me, so i ignored it and booted up the pc anyways and it booted up perfectly! So i installed the latest drivers from amd's website rebooted and played mad max on high settings with ~40-60fps no problem for like ~4hours, but then it just minimizes the game, and when i ctr+alt+delete to close it , it says "not responding" near the game, i played other games like: Dead rising 3,battlefield 3, fallout new vegas, gta IV. All crash. I also tried putting in on the second rail, there was no red light so i thought i fixed it, but now but then it gave me a black screen with monitor shutting down afterwards, and then a blue screen saying "Attempt to reset the display driver and recover from timeout fail". I used ATI radeon 4800hd and had no similar problems. my pc's specs Intel core 2 quad q6600 2.40ghz 6gb ram p5k mobo. it could be something simple, and don't hesitate to ask!