I use Speedfan to monitor and regulate my fans. I'm using a new FX-8350 with an MSI Gaming 970 board. Recently I've found when downloading a file using a browser, a game portal doing an update or a cloud service transferring a file I've noticed one of my 8 cores is maxed out and my system becomes very choppy. I've reported the issue to MSI and they suggested my CPU may be bad. Any suggestions? How can I contact Tech Support?
If only one core (out of 8) is getting maxed out, that should not bog down your system. Perhaps something else is causing the performance issue ?
If however, you feel the processor has developed a problem, you can apply for warranty service at www.amd.com/warrranty