Asrock Z170 Pro4s

parsec wrote: Znastyyy wrote: Wow I really appreciate the help guys, thank you. I just received an email response from ASRock, "Only CPU_FAN1 and CHA_FAN1 can auto detected with 3 pins connector. If case fan connector is 3 pins that may not be worked on CHA FAN2, and CHA FAN 3 is not adjustable.". I guess that explains why I can only adjust the speeds of CHA_FAN 1 and CPA_FAN. So now it's just a matter of figuring out how I can make this work since I only have 1 header will allow me to adjust speeds and 3 case fans. What are my options. Does Corsair make a 4-pin version of the SP 120 RGB? What about a fan hub? I already have the hub and controlled that is included with the case but that is solely for lighting not speeds. Does Corsair have a four pin PWM version of the SP120 RGB? They sure do, the HD120 RGB. For example: (sorry the link tool fails with some URLs. Just highlight the text below, right click on it and select an open option) http://www.newegg.com/Product/Product.aspx?item=N82E16835181121 IMO, it is unusual for a fan header to be PWM only, even for a four pin header. If you can test the Chassis Fan2 header with a PWM fan first, I would suggest that. About how to control all your fans, I was thinking about something, but one question first. What type of fan is used by your CPU cooler, three or four pin PWM? You never answered any of my other questions in my previous post, but I'll ask that anyway. I'll assume your CPU cooler fan is a four pin PWM fan. Since we know the fan headers labeled CPU_FAN1 and CHA_FAN1 can control both four pin and three pin fans, and (apparently) the CHA_FAN2 header is four pin PWM control only, just ignore the labels and put the three pin fans on the CPU_FAN1 and CHA_FAN1 headers. Connect the four pin PWM fan for the CPU cooler to the CHA_FAN2 header, and set it to monitor the CPU temperature. Then get a one to two fan splitter cable, and use it to put two of the case fans on the CPU_FAN1 or CHA_FAN1 header. If the fan speed control options are the same for those two headers (except the ability to monitor the mother board temperature with the CPU_FAN1 header), then the name or label for the headers do not mean anything. We are not required to put the CPU cooler's fan(s) on a header named CPU FAN, those are just labels to identify each of them. All you need to do is remember the CPU cooler's fan in on the CHA_FAN2 header, and the chassis fans are on the other headers. Or you can somehow get the four pin HD120 fans. They cost more than the standard SP120 fans, so I doubt Corsair will just send them to you. Corsair is usually good about replacing defective parts, but your fans are not defective.

Thanks again for the response. I looked at those HD 120s and noticed that the lights are around the outside of the fan blades as opposed to on the inner circle of the center in the SP 120s. It might seem picky but I like the look of the SP 120s.

As for my CPU_FAN 1, it is a 4-pin PWM header.

I like your solution and I think it will work nicely and also given that I guess the only other real option is to buy three of those HD 120s. One question though just to clarify, will using a 4-pin PWM splitter plugged into CHA_FAN 1 and then having my 3-pin fans plugged into the other end allow me to control the fan speeds via PWM? Also can you link me to a splitter I should use?

EDIT: I just tried the aforementioned solution and it will not work because the CPU fan cable isn't long enough to reach over my graphics card and down to the bottom of the board where the header is. Is there anything else we can do, maybe some kind of a controller?


Edited by Znastyyy - 09 Dec 2016 at 11:07am

Wow I really appreciate the help guys, thank you. I just received an email response from ASRock, "Only CPU_FAN1 and CHA_FAN1 can auto detected with 3 pins connector. If case fan connector is 3 pins that may not be worked on CHA FAN2, and CHA FAN 3 is not adjustable.". I guess that explains why I can only adjust the speeds of CHA_FAN 1 and CPA_FAN. So now it's just a matter of figuring out how I can make this work since I only have 1 header will allow me to adjust speeds and 3 case fans. What are my options. Does Corsair make a 4-pin version of the SP 120 RGB? What about a fan hub? I already have the hub and controlled that is included with the case but that is solely for lighting not speeds.

I checked into these new Corsair SP120 RGB fans, which have several variations in models, even within one model number. The difference is one model has a "controller", which seems to be only for controlling the color settings on the fans.

Do your fans have the controller or not?

In the A-Tuning, FanTastic Tuning feature, there should be a Fan Test button above the fan speed curve display, for each of the fan headers, CPU and Chassis. Did you try running that for each fan header?

Another question, in the A-Tuning, FanTastic Tuning feature, how many of the fan headers have configuration options? Do you find entries for all the fan headers?

The manual for this board shows configuration options for all the fan headers, except for Chassis Fan3. That means, as Xaltar said, that is a full speed only fan header. But the Chassis Fan2 header should be able to control a fan's speed.

As Xaltar said, every fan model is different regarding how fast the fan spins for various applied voltages. There are no standards for this, and all fans are quite different in their speed/RPM at various voltages. The wider the speed/RPM range of a fan, the more sensitive to applied voltage it will be. That means the predefined fan speed curves, like Silent, may not be applying a voltage low enough to keep a fan from spinning fast. But if your fan is really running at full speed with the Silent setting, that does not make sense.

Have you tried creating a Custom fan speed curve on the Chassis Fan2 header?

We have seen other reports in the forum about the Chassis Fan2 header on this board not seeming to control a fan's speed. We never learned why that was apparently happening. Now with you experiencing the same thing, I'm wondering about this again.

Xaltar, I'm curious about why you suggest using the Motherboard temperature monitoring setting for a chassis fan, rather than the CPU. In my experience, my mother board temperature does not change much, if at all, a few degrees C at most. That can be a personal choice of course, not wanting the chassis fans to speed up when the CPU temperature increases for a short time, and the chassis fans become audible. I set my chassis fans to monitor the CPU temperature, since I want more cool air entering the case when the CPU is warmer. That also depends upon the CPU cooler being used.

Znastyyy, have you tried setting the Chassis Fan2 header to monitor the CPU temperature?

I emailed corsair. Maybe they will send me 4-pin fans since nobody can figure this outp

Yes it will work fine.