Hi, I was wondering if anyone can describe how they setup their fans for the CM Hyper 212+. I have two fans on both sides and both are powered by the motherboard. One of the fans is controlled by PWM and the other is not(running at max rpm). My previous setup was the PWM fan as intake and non-PWM as exhaust. But after reading around about cooling and airflow, I thought I'd switch the fan around to get more intake with the non-PWM fan, but its seems that the temperatures went up around 36C idle to around 39-40C idle. I thought more intake of cool air was better for cooling. So I was wondering if it was because the PWM exhaust was moving slower than the non-PWM, would cause air to be trapped in the heatsink? If so, should I just disable PWM(the fan is pretty loud on max rpm)?
If you case has airflow issues, then using the second fan in the case is a better idea. If you only have a front fan, then put the second in the back to exhaust. You could try side exhaust if you have the option, if you already have front and back fans. If you have no case fans at all, indeed, put one in the front.
1 fan versu 2 fans is not a huge difference on the 212+, a couple degrees usually. If you case is lacking proper ventilation, it will have a far worse effect on the heat.