Optimal VCCIO and VCCSA levels for an i5 8600K are safe and stable.
The safe everyday use VCCSA and VCCIO voltages for an i5 8600K are typically around 3.0 to 3.2 volts.
1.1-1.25 and likely 1.3 are also secure, avoid exceeding those limits.
Wats iirc?
I think so.
Sure, I understand. I won’t exceed 1.25.