Moop

Pc specs are: CPU: Intel Core i9-9900k @5.0GHZ all cores (1.35V) CPU Cooler: NZXT Kraken x72 360mm GPU: Asus Geforce RTX 2080 ROG STRIX OC Edition RAM: 2x16GB Corsair Vengeance RGB DDR4 3200 Motherboard: Asus ROG Strix Z390-E PSU: EVGA Supernova 850 G3 Case: NZXT H700i Storage: Samsung SSD 970 Pro NVMe 512GB Samsung SSD 860 EVO 1TB WD Black SSD NVMe 1TB WD Blue 2TB PC Hard Drive - 5400 RPM Also there has been 8 power outages in the past 2 months at my house due to a breaker that keeps tripping which we haven't figured out why but thats another story. But since My PC has well shut down 8 times unexpectedly It has been crashing a few times while playing games recently. Some times crashes twice back to back within 5 minutes. and 90% of the times in blue screen it's stuck at 100% and I have to shut down with power button. I did remove the OC for a week and there were no crashes but I was also using the old 5 GHz OC for 8 months with no issues. So I'm starting to think maybe the board did get damaged and it can't handle a OC anymore but even then not sure if that would have anything to do with why it is suddenly running at max frequency of 4.7-5GHz depending if the OC is on or not. The voltage does go up and down as well but I think that's mainly because the frequency is at max for no reason at idle. It was fine yesterday that I was checking temps and other stuff. EDIT: Putting the PC on powersaver apparently solved the issue. It was on Balanced. But doens't make any sense because it was on balanced for 10 months with minimum CPU power at 5% and no issues. What should I do? right now I put it on powersaver and changed all the option as if it was on balanced like setting cooling to active instead of passive and etc... and seems to have no issues.

I cleared the CMOS as you suggested and still the same issue. So I left the pc for like an hour with nothing open but CPUZ and I just came back to check on it and its still sort of doing the same. frequency jumps up and dow. mostly staying at max and going down for a split second then back up.

Was using my PC when the power went out for a second cus of windstorm and lightening where I live and now the CPU is running at max frequency while voltage goes up and down as it pleases. Minimum CPU power is set to 5% and the CPU is over clocked with adaptive voltage, was fine until yesterday that I checked. Could there be any damage to the motherboard? right after power came back and I turned on the system it was stuck on a blue screen loop so I took the OC off booted properly then put the OC back on but I did check the frequency without the OC to see if it runs at max frequency and it does even without any OC. So I'm very confused as to what happened!