Additional CPU power connector available.
Additional CPU power connector available.
Your Strix Z590 gaming-a has both 8-pin and 4-pin connectors at the top. You should use the 8-pin for your i7-11700k and RTX-3060ti, not the extra 4-pin.
When pushing the 11700K to its maximum with a 360mm AIO setup, adding the extra 4-pin connector makes sense because you'll likely exceed 400W. Using an 8-pin instead would be better if your cooling isn't sufficient for that power level. If you're only running at normal temperatures or have less efficient cooling than a 360mm model, sticking with an 8-pin is acceptable.
It doesn't cause any pain. It only increases the highest safe power level that can be applied to the board, excluding other constraints like VRM performance and cooling. When you're already at full capacity, it neither aids nor hinders anything.