I have had an issue that when I put the PC to Sleep mode, the PC returning from sleep mode returns to a different CPU frequency. In my case my CPU was at
3900 Mhz and then returned to
3600 Mhz . This has been been happening on a regular basis every time the PC goes to sleep mode.
The PC has been running in a stable mode for days so there is no issue with CPU or memory.
http://aorusgaming5.blogspot.co.uk/2017/04/pc-returning-from-sleep-mode-to.html
