Are Fan Splitters Bad?

by | Last updated on January 24, 2024

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You will be safe using a fan splitter

as long as you the fans you are connecting does not draw more current than the motherboard header provides.

Do fan splitters reduce fan speed?


No

, they will all run the same speed.

Is fan splitter safe?


They’re safe

. The reason why the fan connects to the motherboard is so that the motherboard can tell the fan when to ramp up its speed (they don’t run at full blast unless they need to).

Can you control fans with a fan splitter?


You won’t be able to control the fan speed using that fan splitter

. The power is coming from the PSU via a Molex connector instead of using power from the motherboard.

What does fan splitter do?

A mobo header’s circuits can accept and count the speed pulse signals from only ONE fan, so a splitter

must send to the header the speed signals from only one

. The other fan’s speed signals are ignored. This is the correct way to build a splitter.

Are 4 way fan splitters safe?


They’re safe

. The reason why the fan connects to the motherboard is so that the motherboard can tell the fan when to ramp up its speed (they don’t run at full blast unless they need to).

Do I need fan splitters?


Don’t use a splitter

. Your motherboard probably can’t handle 5 fans on one fan header, especially if 2 are LED fans. Instead, plug the fans straight into the power supply with MOLEX connectors. You can even use a fan controller if you like.

Do Noctua fans come with fan splitters?

Noctua NF-A12x25-PWM

comes with a splitters

, but it splits a 4-pin into a 4-pin and a 3-pin.

Can 3 pin fans plug into 4-pin?

1 Answer. Apparently a

3-pin fan can plug directly into a 4-pin socket

. Two of the pins provide power to the fan, the 3rd provides an RPM pulse to the motherboard to read the speed. The 4th pin is for PWM speed control.

How many fans can my motherboard support?

Most motherboard headers will provide 1 A, so do

not connect more than 4 fans to one header

. Some motherboards have headers that can provide more (e.g., mine do 2 A) so you could attach more.

Does PWM work with fan splitter?

Gelid’s 1-to-4 PWM Fan Splitter allows

the user to connect up to four PWM fans from just one PWM fan header on the motherboard

. … The extra power required to run four fans from this splitter is provided by the 4-pin molex connector, which does need to be connected if more than one fan is used.

What is a PWM fan controller?

PWM

stands for pulse width modulation

. PWM fans and/or pumps are found in some CPU coolers and GPU (aka graphics card) coolers. They use an integrated circuit to control the speed of a fan or pump and, therefore, how much cooling it’s providing to the CPU or GPU. … Note, older fans may use 3-pin connectors.

What is a PWM hub?

Features: The Phanteks PWM Fan Hub is capable of powering up to *11x fans (3-pin) through PWM modulation, while occupying only 1x 4-pin header of your motherboard per Fan Hub. … The PWM hub comes with pre-drilled mounting holes for easy installation to your Enthoo cases and also Velcro strips for use with other chassis.

Can I daisy chain fan splitters?


Multiple NA-YC1 can be

daisy-chained to control more than two PWM fans via one header. … Please thus make sure that the combined power draw of the fans connected to one fan header using NA-YC1 adaptors does not exceed this value!

Jasmine Sibley
Author
Jasmine Sibley
Jasmine is a DIY enthusiast with a passion for crafting and design. She has written several blog posts on crafting and has been featured in various DIY websites. Jasmine's expertise in sewing, knitting, and woodworking will help you create beautiful and unique projects.