Advice needed about fan-connection! :)

[Blufkip]

Hello all!    (I hope I put this subject in the right category) ;-)

 

I have a question about connecting my fans to the motherboard.

 

I've ordered the Msi z170i mini itx board which has two fan headers. 1x CPU and 1x System.

In my case I have 5 fans and 1 pump.

-4 of the fans I've connected to a splitter which I'm going to plug into the System fan header. 

-The other radiator fan + pump with and Y splitter to the CPU fan header.

 

My question:

-Now both the cpu fan (which is good) & the pump (which I think isn't a good idea) are running with variable speeds depending on the CPU temps. Will this harm the pump? I heard somebody say that it's better to give the pump a constant speed...

 

-If so, Is there any way to connect the pump to a different port, or even directly to the PSU?

 

Or does somebody have an alternative solution? I definetly want to keep this setup!

 

Thanks in advance!

[Naeaes]

Take the splitter away and find some other place for the fan. Variable speed for the pump is fine if it's a variable speed pump. You can tell by counting the wires. Three is variable by voltage and four is variable by PWM. Two wires is technically variable by voltage but has no tachometer so I'd rather not adjust that at all.

 

In any case, you should never mix pump and fan when using PWM. either/or works but together they tend to go haywire.

[Blufkip]

Thank you for the respons, I already thought so.

Maybe this is an idea: Pump on System fan header and radiator fan on CPU fan header. The other 4 fans on a tiny fan controller connected to the PSU?

 

The cooler i'm about to use is the Corsair H75. All the others didn't really fit in the Ncase M1 ;-)

[Deli]

Thank you for the respons, I already thought so.

Maybe this is an idea: Pump on System fan header and radiator fan on CPU fan header. The other 4 fans on a tiny fan controller connected to the PSU?

 

The cooler i'm about to use is the Corsair H75. All the others didn't really fit in the Ncase M1 ;-)

Maybe just power the pump via molex directly from PSU. The pump from H75 isn't particularly powerful. This isn't much headroom to lower its speed. Run it at 12v constant speed. Also this way it puts less stress on the CPU fan header, as it only needs to power the fan.

[Kevguy]

I recommend getting a board with more fan headers.

[Noyu]

I recommend getting a board with more fan headers.

dude already ordered the board ahahahaha