Those connectors are keyed, but only to prevent you from installing them backwards or rotated 90 degrees, and not from doing what you did. The “tombstone” shaped pins will fit in the square holes, but not vise versa.
Offsetting it by 1 pin side to side won’t result in the loss of any smoke, because you will observe the wire colors and that all of the pins on the top edge are 12v positive and all the pins on the bottom edge are ground. You got away with what you got away with because you merely delivered insufficient current to the board, but not the wrong voltage or wrong polarity to the wrong place.
Those connectors are keyed, but only to prevent you from installing them backwards or rotated 90 degrees, and not from doing what you did. The “tombstone” shaped pins will fit in the square holes, but not vise versa.
Offsetting it by 1 pin side to side won’t result in the loss of any smoke, because you will observe the wire colors and that all of the pins on the top edge are 12v positive and all the pins on the bottom edge are ground. You got away with what you got away with because you merely delivered insufficient current to the board, but not the wrong voltage or wrong polarity to the wrong place.