Can you mix DC and PWM fans?

You can mix and match without a problem too, they’ll all be controlled the same way. You’ll just want to avoid auxiliary Molex connectors since those will override the motherboard’s control on non-PWM headers..

Can I use PWM fan without PWM?

If no PWM signal is present, almost all fans will work on 100\% of power, while most pumps used in water cooling will operate at some medium speed. Meaning, if you want to run the pump on full power, you need to hook it up to a PWM signal that is set on 100\% duty cycle.

Are all 4 pin fan headers PWM?

All 4 pin fan headers are NOT PWM. It has become common practice to use 4 pin headers these days, but Asus for example reports that their 4 pin headers for example are NOT PWM…..

Where do I connect 4 pin PWM?

PWM fans are controlled by BIOS using pulse sensors. They are plugged on the motherboard 4 pin modules. If this is a case fan, you should plug it at a 4-pin module called “chassis fan” header or “sysfan” or something like that.

Is it okay to mix case fans?

Can’t use 4pin and 3pin on the same header or they’ll always run at full 12v speeds. Other than those, you can mix and match fans as you like and those LL120 are pretty decent fans.

Can you have different fans in a PC?

Technically seen, you can just set any fan to any speed it supports. Unless you do some crazy things, there shouldn’t be any problem. You can mix up different rpm and other settings for you fans, like I do.

Can you use 3 pin fan 4 pin?

Please Note: You can connect a 3 Pin Fan to a 3 Pin or 4 Pin header on the motherboard. The fan will function normally no matter type of fan header is used. The fan connector will have two guides (1) and these will need to line up with the tab (2) that is on the motherboard fan header.

What happens when you plug a 4 pin fan into a 3 pin header?

If you plug a 4 pin fan into a 3 pin socket, the fan speed will be controlled by voltage and it’ll still work. The plugs are keyed so you can’t get the pins around the wrong way.

Does 4 pin mean PWM?

Pulse-width modulation (PWM) is a common method of controlling computer fans. A PWM-capable fan is usually connected to a 4-pin connector (pinout: Ground, +12 V, sense, control).

Why do PWM fans have 4 pins?

So, why does a 4-pin PWM header exist on a motherboard? The reason is quite simple: The 4-pin PWM header is used to control the cooling fan that’s attached to the enclosure. Most modern motherboards are likely to be equipped with such a header, which is connected to a PWM-supported BLDC fan.

How does a 4 pin PWM fan work?

A 4-pin PWM fan is driven by pulses with varying duty cycles. A 4-pin PWM fan does more than the 3-pin’s power, ground, and signal connections to the motherboard—it also has a fourth wire that provides feedback from a built-in tachometer sensor to the motherboard.