Do I need to plug in both ATX12V2 and ATX12V1?

[boed]

I admit I really feel stupid asking this but am unclear if I need both connected on my motherboard. I skimmed and it said what they were but I missed where it said if both are required? My 4 old motherboards only had 1. Seen on page 15 top left corner of the motherboard.
//C:/Documents/DOCS/TECH/Z390%20Taichi%20Ultimate.pdf

 

[boed]

It turns out I do not.

 

[crashtech]

Usually extra pins are placed to meet current delivery specs for OCing, especially extreme OCing. ASRock may have found that under certain conditions, the current flowing through the 8-pin EPS connector exceeded specs, hence the extra 4-pin.