Motherboards have a restricted number of fan headers. Sometimes the number of fan headers is method reduced than the amount of CPU fans you have actually on your case. So, precisely, exactly how to attach additional fans to motherboard?

If you want to add extra fans to your motherboard, you have the right to get a Y splitter that permits for multiple fans to be linked to a solitary fan header or go for a Fan Hub that requires a sepaprice power supply. Be warned, however, that the majority of headers are restricted in regards to just how much power they can supply. A fan header frequently has actually a 1 amp rating.

You are watching: How many fans can you run off one header

When making use of a Y splitter two CPU fans is primarily okay for a solitary fan header. Three CPU fans can begin to push the limit of the power a single fan header deserve to supply.

It is quite vital to check the fans’ amperage because it will be the determining element on how many kind of fans you have the right to actually run off the motherboard and also the splitter.

For instance, you have the right to only run 2 0.5A fans while 4 wouldn’t be an worry for 0.25A fans if your fan header is actually rated at 1 Amp.

A workaround for greater amps CPU fans would certainly be to acquire a COMPUTER fan hub that can attract power straight from the power supply unit (PSU) and also thereby, lifting the amperage constraints.

In the following text we will discover this topic further.


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What is a FAN Header?

Quite ssuggest, Fan Headers are terminals discovered on your motherboard wright here you plug your many type of COMPUTER cooling fans. They operate and also monitor the fans of your COMPUTER.

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If you are a fan of RGB and also if you have an Addressable RGB header on your motherboard, then you can find a 2-in-1 Fan+ARGB Hub also.

Addressable RGB basically implies that the shade of the LED on the fans deserve to be regulated.

Again, you perform have to have actually an Addressable RGB header for this hub to occupational. Essentially, through this header, you deserve to have upto 6 PC cans connected via the capacity to change their color.

The colors cannot be readjusted individually for each fan, though.

Also Read: What are PCIe Cables Used For?

Final Words

As far as how to attach added fans to motherboard goes, tright here are two standard methods that we spanned above.

If this does not suit you, then tbelow is a third means to add fans to your PC yet that does not involve your motherboard. Essentially, you have the right to use 3 pin to Molex adapters that can affix straight to the Power Supply Unit bypassing the motherboard.

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However before, this method offers you no manage over the fans and does not provide you via any surveillance capcapability.