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Fan header question

MEEEE
By MEEEE
in Cooling
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So I am planning the cooling for my case and I think that I'm going to have 6 case fans and an extra 2 for the heatsink. The motherboard I'm looking at (Maximus Xii Hero, Z490), has 6 case fanheaders and one CPU fan header according to asus's website. Originally I planned to use the fan hub included in the case I'm looking at (Meshify S2). It has 3 4-pin fan headers and connects to the motherboard through the CPU fan header and is powered by SATA. From what I'm seeing you are supposed to connect your heatsink fans or CPU cooling fans to the CPU fan header. Is this true? I'm basically asking how I should connect everything.

 

Thank You.

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4 minutes ago, MEEEE said:

From what I'm seeing you are supposed to connect your heatsink fans or CPU cooling fans to the CPU fan header. Is this true?

You'd want to do that. Otherwise your BIOS might be weird about it.

At best it will spit out a "you have to connect a CPU fan!" error, which you might be able to turn off, at worst it will refuse to boot up because of the lack of CPU fan.

 

But of course:

5 minutes ago, MEEEE said:

Originally I planned to use the fan hub included in the case I'm looking at (Meshify S2). It has 3 4-pin fan headers and connects to the motherboard through the CPU fan header and is powered by SATA.

If you do this, your motherboard will see something connected to the CPU fan header and won't complain.

The fan hub will take the signal from your motherboard's fan control, that tells the CPU fan to run at a certain speed, based on the CPU temperature and will distribute it to all the case fans.

 

You can use he fan hub, you can use the fan connections on the motherboard. I'd say go for whichever is easier to connect (in terms of cable management).

"We're all in this together, might as well be friends" Tom, Toonami.

 

mini eLiXiVy: my open source 65% mechanical PCB, a build log, PCB anatomy and discussing open source licenses: https://linustechtips.com/topic/1366493-elixivy-a-65-mechanical-keyboard-build-log-pcb-anatomy-and-how-i-open-sourced-this-project/

 

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You can use any fan header on the mobo. The note about using only CPU fan headers was relevant some 3-5 years ago when most mobo's didn't have all PWM headers. And thats all you need to those powered splitters, a PWM header.

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