Hello. My pc: *Asus Z170-P with 6700K cpu *Corsair 750 RM *Gtx 1080 Ti Founder Edition *Monitor Red Eagle IIyama 24' 1080p 144hz plugged by display port cable to GFX. Few days ago i get power outage. Power outage was because fuse was tripped because of kitchen which was turned on in other room. When i run pc first time on first boot ( after power outage ) refresh was normal at start 144hz. When i manually turn off computer and turn on again,and on my second boot it happened. Refresh was lower than 144hz. To make again 144hz i turned off monitor and turn back on again. So that was bug or that power outage related cause it happen soon after outage? But i like i said on my first pc run ( boot ) after power outage refresh was 144hz fine. It happened just after i normally shutdown my pc and booted pc second time. Maybe coincidence and i am worrying for nothing,hehe ? So conclusion: It happened not just after ( not on pc first power on ) power outage. But on second time ( second turn ) when i boot to Windows 10. PS: I tried to reproduce only 3 times by cutting power to pc and powering on and booting again, but 144hz on start. Not able to reproduce. Maybe coincidence and i am worrying for nothing?