Should I be worried?

Solution
Because it stopped being shipped on PSUs around a decade ago. If you look on the 24-pin ATX connector, you'll notice there's a pin without a wire.

It was used for a feature (think it was ISA slots) that is no longer present on modern boards.

However, most management ICs still have the input, in case they're on a board that's built with legacy converters etc.
Because it stopped being shipped on PSUs around a decade ago. If you look on the 24-pin ATX connector, you'll notice there's a pin without a wire.

It was used for a feature (think it was ISA slots) that is no longer present on modern boards.

However, most management ICs still have the input, in case they're on a board that's built with legacy converters etc.
 
Solution