Corsair H105 + PWM fan hub = Ive lost the plot!

[Musty Pie]

Hello everyone!

After a bit of advise

First of all apologies but I will try to clarify my points as best as I can.

I have an Asus P8P67 Pro motherboard with my i5 2500k.

I have this built in a Corsair 750D case with 2x intake Fans at the front (stock fans) 1 rear AF140 Silent exhaust fan, 1 SP120 Quiet intake at the base of the case, and 1x AF140 mounted on the top of the case.

My cooler is the old Noctua NH-U12P with 1 Fan.

Due to positions of the fan headers on my motherboard and to keep the cables neat I ordered a Phanteks PWM hub.

This is mounted on the rear of my case and all of my case fans (inc. CPU fan) are connected to this hub. This hub is powered by a Sata power connector and connects to the PWM CPU header on my motherboard.

The fans in the case all ramp up and down depending on load.


However I have a Corsair H105 on its way to replace my Noctua NH-U12P.

I plan on using 2xSP120 fans on the rad and mounting this to the top case!

However due to the power cables and requirements of the H105 I need to connect the fans to a PWM header and connect the pump part to provide full power?

As the Phanteks hub (to my knowledge) can only run fans at either full speed or based off the speed from the connection to the PWM.

Basically what I am asking is the best way to configure what I have to get it to work?

Connect the H105 to the PWM and let the fans ramp up and down as required, and leave all other case fans running on full via the hub?

Or can I plug the radiator fans into the hub? and leave this running via the PWM port?

If the above makes any sense well done and I will give the person who makes me understand this an internet cookie

 

[Danny75]

Or can I plug the radiator fans into the hub? and leave this running via the PWM port?

That's what I'd do if you like your case fans ramping up and down depending on CPU load. The pump cable can go anywhere - SYS_FAN header, molex/sata-to-3pin fan adapter (12v of course). It's fixed rate. It would probably be a bad idea to stick it into the Phanteks PWM hub, for instance.

As long as the case fans ramping up and down don't disturb you. I often prefer a constant level of noise (a bit) to a constant change of pitch even if at moments there is only silence.

 

[Musty Pie]

Im kind of half tempted to set the case fans at a constant speed and just run the radiator fans via PWM CPU header.

Can i run both the SP120's via a Y slitter the the CPU header for PWM?

As doesn't the pump power off a normal fan header so i can just use one of the ones on the board?

 

[MrMD]

Im kind of half tempted to set the case fans at a constant speed and just run the radiator fans via PWM CPU header.

Can i run both the SP120's via a Y slitter the the CPU header for PWM?

As doesn't the pump power off a normal fan header so i can just use one of the ones on the board?

You will be fine running both fans off of the CPU header with a Y splitter.Doesnt the h105 have a molex power connector too? Use that for power,less cables dangling about.

 

[Danny75]

Can i run both the SP120's via a Y slitter the the CPU header for PWM?

Yes, no problem.

As doesn't the pump power off a normal fan header so i can just use one of the ones on the board?

Yes, like the SYS_FAN header I mentioned, but if your mobo also has a CPU_OPT header you can use that one too (unless you use it for the Phanteks PWM hub). Or 12v molex/sata adapter.

 

[Musty Pie]

I have a modular PSU and I don't have a single molex power device so i don't have a molex to use. And I am not plugging in another cable just for the sake of that pump !

I think I will use a Sys_Fan header for the pump and run the 2 rad fans either off the PWM hub left connected to the CPU header, or remove the hub use the CPU header for PWM on the rad fans and leave the other case fans running at full speed.

If that makes sense?

Thanks for the help though guys

 

[Danny75]

I think I will use a Sys_Fan header for the pump and run the 2 rad fans either off the PWM hub left connected to the CPU header, or remove the hub use the CPU header for PWM on the rad fans and leave the other case fans running at full speed.

If that makes sense?

Totally.

Thanks for the help though guys

By the way...

Spoiler

 

[Musty Pie]

hahaha!

Here - Passes one internet cookie through cyberspace!

 

[Danny75]

hahaha!

Here - Passes one internet cookie through cyberspace!

Ta very much. Shares with everyone.