Can I connect the U pins of the power supply to the □ of the motherboard?

Question

Power Supply

Is it possible with peace of mind to connect the PSU connector (Fig. 1) to the slot on the motherboard (ATX_12V_1) (Fig. 2), if there are more U-shaped pins on the PSU connector? Shouldn't there be 100% compliance?

Is there really "universality" of pins on PSU connectors?

Answer 1

In general, "It looks like the connector is designed this way for backward compatibility" for ATX/EPS12V.
I found the pinout of such a connector (there is no PSU in the docks), all the lower ones are gnd, the upper ones are 12v.
Checked - everything works fine. Those. this is normal.

Answer 2

ONLY complete wires can be used .
There is no standard there.
No one guarantees compatibility even within the model range of one manufacturer.