1 ch pwm controller

[Tsx]

Hi,

 

I build a new mitx system. My problem after all finished ... pwm controlling.

 

I have a GA-Z170N-WIFI with a 6 ch pwm splitter where are 5 eloop 120mm connected. Idea was to connect the splitter to the 4pin pwm mobo system fan connection so the splitter could mirror the signal to all fan. 

 

Now after some mails with the manufacturer from mobo, splitter and fan I am bit disappointed about gigabyte. Fans are like the splitter real pwm. The mobo looks like 4 pin pwm and the description in mobo suggest that it is one.

 

Log story short. I am looking for a 1ch pwm controller which where I can connect the splitter. 

[Avcoor]

I'm not sure I understood your problem.

But your even though the spec sheet of your mobo says it has one CPU Fan Header and one System Fan Header I could find only the CPU fan Header at the picture (Am I missing it? Found it) 

 

You can connect the Fan Splitter directly to your CPU Fan Header, although not ideal it works just fine.

 

Edit.: Derp, I found the header. I´m not understanding your problem. Sorry

[Tsx]

2 minutes ago, Avcoor said:

I'm not sure I understood your problem.

But your even though the spec sheet of your mobo says it has one CPU Fan Header and one System Fan Header I could find only the CPU fan Header at the picture (Am I missing it?)

 

You can connect the Fan Splitter directly to your CPU Fan Header, although not ideal it works just fine.

Both are together. One white and one black. Yes I could use the pwm from the cpu but the cpu cooler is from noctua with two different sizes of fans. Don't won't to mix it with my 120mm case fans.

[WoodenMarker]

2 hours ago, Tsx said:

Both are together. One white and one black. Yes I could use the pwm from the cpu but the cpu cooler is from noctua with two different sizes of fans. Don't won't to mix it with my 120mm case fans.

Mixing them is fine and the cpu_fan header provides the most reliable pwm signal.

[asand1]

13 hours ago, Tsx said:

Both are together. One white and one black. Yes I could use the pwm from the cpu but the cpu cooler is from noctua with two different sizes of fans. Don't won't to mix it with my 120mm case fans.

While they won't spin the same speed, it will be close, and they will change speed at close to the same rate. It will work well enough. Many times, the SYS_FAN header will have 4 pins but actually be voltage controlled by default. You might be able to change it to PWM in BIOS.

[Tsx]

I dont test i yet but i will today. But if someone know a 1 ch digital pwm controller oder non digital it would be very nice. I couldnt find anything after a week of searhing. 

 

Looks like their are trillions of fans and a lot of cases in mITX that supports a couple of fans but pwm is not that popular like voltage control.