6/3/2023 0 Comments 3 pin fan pinout![]() ![]() I would have thought 4-pin fans would be the default choice due to the extra control, but perhaps thats a cost issue. Should I understand what that means?Īlso, it appears 3-pin fans are more common. One of the reviews for the Silverstone FM122, which I'm leaning towards, states the fan is powered directly from the system PSU via the Molex connector. Speedfan, bios, other software won't have any affect on the speed fan).Ĥ-pin fan - the fan is controlled by pulse-width modulation (pwm), which seems to mean you can adjust fan speed through the motherboard using software/bios. It's not possible to adjust the fan speed through the motherboard (i.e. I think that means fan speed is adjusted by some physical means, such as a knob to turn. ![]() I'd appreciate it if anyone can confirm/correct the following.ģ-pin fans - the fan is controlled by voltage. I'm in the process of upgrading to an Ultra-120 Extreme, which requires the purchase of the fan separately. The world of case/CPU fans is new to me, and I want to make sure I understand what I've read about 3-pin and 4-pin fans.
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