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I would like to add an external 92mm fan to the back of my case, to help draw air through the case more quickly.
Q: On the motherboard there is an additional unused fan power socket, labeled "fans2 fans1."
This looks exactly like the CPU fan socket, and my guess is that this is an active 4-pin PWM socket.
Does anyone know for sure whether this an active 3-pin fan socket or a 4-pin PWM fan socket?