You are u using the stock fans of the H115i? I did have that cooler and i send the it to the trash. (the fans no the cooler)
Use these link. MAKE IT by the word. restore defaults https://www.youtube.com/watch?v=wlR7CNuoOXk&list=PLUdTLi2Z-IxLmosxLtjn26OVU_e-5RwDt&index=15&t=0s
Yo do not need adaptive voltage with 7700k. idle temps are ok.
I did have 7700k oc to 5.0 1.29 24/7 no issues. untill my aio was damage. i get that cooler and WAS AS BAD as ..... in a party. Fans are so bad. you can change those and use bios to control the fans. (turbo)
Just follow the link tutorial by the letter.