I just unboxed the 3900X and installed it into my motherboard. Easy-peasy, very positive indication, better than Intel processors. .
So there is a 4-pin header and a 3-pin header on the side of the fan, on the same side as this switch. I'm pretty sure that the 4-pin header is for the PWM fan control. (Yes?) But what is the L|H switch for? Low? High? But I'm going to use PWM to control fan speed.
EDIT: I just noticed the cable that is pre-wired into the fan. That is obviously for the PWM. My bad for not seeing that sooner.
So there is a 4-pin header and a 3-pin header on the side of the fan, on the same side as this switch. I'm pretty sure that the 4-pin header is for the PWM fan control. (Yes?) But what is the L|H switch for? Low? High? But I'm going to use PWM to control fan speed.
EDIT: I just noticed the cable that is pre-wired into the fan. That is obviously for the PWM. My bad for not seeing that sooner.
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