So i recently downgraded to a gtx 670 msi performance edition. Here is the problem - The gpu starts off at the appropriate workload for a task and slowly decreases the amount of processing power goes towards the task. For example - running a stress test will begin at 100% and slowly end up at 60% then crash out. I've tried reflashing the bios to the same one incase the current version was corrupt. Drivers are current and mobo bios also current. System is 1800x X370 prime 16gb corsair 3200mhz ram 1000wpsu Have you experienced any similar issues? Have any ideas?