Two related questions. For the "1x Case FAN header - 2 Pin small Molex Fan Power Connector" on the motherboard, is it expecting a 5V or 12V fan to be connected? And related - what is the pinout for the 2 pins? Assuming one is ground, is it the pin closest to the "back" of the board (direction of the network ports), or the pin closest to the "front" of the board (direction of the SATA ports)? Thank you.

This is a 12V header