Fan Control Issue

Brocky36

Honorable
Apr 4, 2013
5
0
10,510
Ok, so I just fitted a CoolerMaster Hyper 212 EVO to my machine.

I also bought a couple of extra fans for cooling.

My temperatures are now nice and cool, even at full load.

However, because I now have four fans in my case, things are a little more noisy than I'd like.

When I'm gaming, the noise isn't really an issue because I have my headset on, most of the time....but I'd like to be able to quieten things down when the cooling isn't really needed. Here is how I'm set up;

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Mainboard:- ASUS P8H61-M LE/USB3

The 'push' fan (120mm Coolermaster PWM fan that came with the cooler) on my heatsink is connected to the sole 4-pin CPU_FAN connection on my board. This is controlled by my ASUS FanXpert profile and responds to CPU temp. Currently idling at 600 RPM.

The 'pull' fan (120mm Gentle Typhoon 1850) on the heatsink is connected to the sole 3-pin CHA_FAN connection on my board, where my rear exhaust was plugged into previously. ASUS FanXpert can monitor this fan but doesn't allow me to set a profile for it and so it runs at a constant 1123 RPM.

A front intake fan (120mm Gentle Typhoon 1850) is connected via a Molex.

A rear exhaust fan (120mm 1300RPM Thermaltake that came with the Thermaltake Dokker case) which was previously plugged into the CHA_FAN connector, but is now connected via a Molex.
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Questions:

Do I have this set up in the most optimal way possible, given the current hardware?

If the answer is yes, is there a way I can control the CHA_FAN speed via software or BIOS? (I installed SpeedFan - it tells me that my CPU temp is 90c+, despite ASUS AI Suite II, FanXpert, CoreTemp and BIOS all telling me that it's ~26c - I uninstalled SpeedFan)


As a last resort, if I bought a manual fan controller;
A: Would I then be able to control all fans (excluding the CPU_FAN of course) with that?
B: Would the controller connect to the PSU using a single Molex and then the fans would connect to the controller via the 3-pin headers?
C: Which would you recommend?

Thanks in advance.
 
Solution
Different fans on the cpu heatsink is not that great.

If your cpu fan header can control a 3 pin fan, you can get a y cable for the 2 cpu fans and have then control at the same time. They do not seem to take too much power for ONE header.

A note of caution of fan splitters and Y cables, Some link the 2 YELLOW(speed sense wire) this is NOT right and one should be removed from the Y cable if you can.

This would leave you the other 2 fans to control with the fan controller or other means.

Yes, the fan controller just connects to ONE molex and then to the fans with 3 pin connectors.

A fan controller, it just happens to be connected to a 4 pin PWM coolermaster 120mm blade master fan. This controller can also take bare wire fans and feed...
I'd suggest a manual fan controller, yes. NXZT's most basic model works pretty well, and is fairly cheap.

You'd be able to use all the fans you like, it uses a single molex, and it's easy enough to figure out.

Only thing I would consider is that your fans might not work real well at low speeds - some of them start bitching at you. Seeing as how you've mostly got good fans, though, I'd go with it.
 
Different fans on the cpu heatsink is not that great.

If your cpu fan header can control a 3 pin fan, you can get a y cable for the 2 cpu fans and have then control at the same time. They do not seem to take too much power for ONE header.

A note of caution of fan splitters and Y cables, Some link the 2 YELLOW(speed sense wire) this is NOT right and one should be removed from the Y cable if you can.

This would leave you the other 2 fans to control with the fan controller or other means.

Yes, the fan controller just connects to ONE molex and then to the fans with 3 pin connectors.

A fan controller, it just happens to be connected to a 4 pin PWM coolermaster 120mm blade master fan. This controller can also take bare wire fans and feed them 12 or 5 volts.
pwmon3pin.jpg

 
Solution
As long as all the fans are PWM(3 pin fans will just run full speed on that adapter.).

That is an example of a PROPER adapter. it does not have all the speed sense cables tied together, only one fan reports speed. Getting power from the Molex also eliminates all power load on the MB header as well.

I do not think the other 3 fans are PWM.
 

Brocky36

Honorable
Apr 4, 2013
5
0
10,510
Thanks for the replies folks.


Basically, I'd like to have the BIOS automate the speeds of my fans as much as possible.

Nukemaster, the 2 Gentle Typhoon fans aren't PWM, I believe....I'm not too sure about the Thermaltake exhaust fan that came with the Dokker case though.

So can you clarify please....are you saying that the best way to do this would be if I had a second Coolermaster PWM fan, I would be able to have them in a push/pull whereby both would run off the single 4-pin CPU_FAN header via a 4-pin PWM Y cable? That way the FanXpert profile would control both their speeds simultaineously? Then I would just need to have the Thermaltake exhaust fan run from the 3-pin CHA_FAN header and then just manually control the front intake fan, if need be?

Sorry, this is the first time I've added extra fans to a PC.
 
I was thinking that with the 2 gentile typhoon fans, maybe you could try those on the cpu(since they match) with a y cable.

But the final fan setup is up to you.

I used to use fan controllers, but when boards started to get better at controlling fans, I stopped and started to use either slower fans in combination with board control.

I am not 100% sure if coolermaster sells the exact fan on the EVO, they did for the 212+.
 

Brocky36

Honorable
Apr 4, 2013
5
0
10,510
The Typhoons aren't PWM, or I would have had them in a push/pull on the HS from the start and used the CM fan as the front intake. Also, yes, you are correct about the stock EVO fan being pretty impossible to get hold of.

After doing some browsing around and finding that having a push/pull on the EVO was not really that much more effective than just having the push, I decided to remove the pull Typhoon and the noise is now at a level I'm fairly comfortable with. I only gained 1 or 2 degrees and whilst gaming, CPU temps are ~50-55c with the CM fan running at ~60% speed.

I'm happy with that for the time being. At some point, I'll maybe get a controller for the front intake Typhoon. Slowing that down should make things almost silent at times when I don't need the cooling.

Thanks for your replies folks.
 
I can confirm the same thing for dual fans on the 212's I have 2(blade master) on the + model simply because I had them.

My thoughts on the gentle typhoons was more if the board would control a 3 pin fan.

As long as you are happy with your current performance/noise, no need to "fix" it.

They do make fan controllers that can be controlled with a dial in one of the pci cover slots as well if you ever want to adjust the case fans without needing a full controller.

They look like this
 

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