I think I have a problem with my CPU. I have FX-8320E more than a year. At the beginning everything was fine, my CPU was running @4GHz stable, but a few days ago, I got blue screen at the start of windows boot: Clock_watchdog_timeout or Machine_check_exception. After some experiments I figured out that CPU can now only run max @3.7GHz, anything above and mentioned blue screens appear. I thought it my be the MB problem but after changing it, no difference. Also when I use Gigabyte's EasyTune to overclock CPU to 4.1GHz, it get only to 3.3GHz for some reason. Is it really CPU problem, or should I try something else too?
Can someone help me to figure it out please?
FX-8320E currently @3.7GHZ
Gigabyte 990FX-Gaming MB (MSI 970 Gaming before)
16GB Kingston 1866MHz RAM
Sapphire R9 380X NITRO OC 4G
512SSD + 1TB + 2TB
all drivers up to date