Asrock Z170 Pro4s
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=3970
Printed Date: 22 Dec 2024 at 6:59pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Asrock Z170 Pro4s
Posted By: Znastyyy
Subject: Asrock Z170 Pro4s
Date Posted: 07 Dec 2016 at 10:12pm
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Hello everyone, I just completed my first build and everything (apart from this) is running smoothly. For my build I chose the Corsair 460x RGB case which comes with 3 Corsair SP 120 RGB fans mounted in the front. Whilst completing my build I plugged 2 out of the 3 fans into the front panel, 4-pin, CHA_FAN 1 and CHA_FAN 2 headers on my Asrock z170 Pro4s motherboard. The last fan I plugged into the 3-pin, CHA_FAN 3 header which is located towards the rear I/O. Now the problem is when I adjust my fan speeds either using Asrocks A-Tuning software or the BIOS, it will only change the fan speeds of my CPU fan and the CHA_FAN 1. The fans plugged into CHA_FAN 2 and CHA_FAN 3 are still running at full speed of 1500 RPMs. I should also note that in both the BIOS and A-Tuning it is showing the fan speeds set to "silent" mode and the fan speeds as a percentage correlated to motherboard temperature and the Corsair SP 120 RGB fans are 3-pin. Anyone know how to fix this? Also I need to get a splitter so I can an extra SP 120 RGB fan as an exhaust fan. Thanks is advance for the responses |
Replies:
Posted By: Xaltar
Date Posted: 07 Dec 2016 at 10:25pm
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CHA_FAN 2 should work but CHA_FAN 3 is a full speed header and is not controllable, at least it isn't on my Z170 Pro4s. Make sure your temperature source is set to motherboard not CPU. The fan headers on the Pro4s are limited (not many of them) because it is a budget oriented Z170 board but yes, you can use fan splitters. I use a fan splitter on my Corsair H105 for my radiator fans and they both are controlled by CHA_FAN 2 without issue. I should note however that they are both 4 pin PWM fans. ------------- 
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Posted By: Znastyyy
Date Posted: 07 Dec 2016 at 11:16pm
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" rel="nofollow - Thanks for the reply. That is what I am confused about. If CHA_FAN 1 is working properly then so should CHA_FAN 2 right? I mean there is zero difference between them regarding fan model and such. Which splitter would you recommend using as I have ordered a separate SP 120 RGB to use as an exhaust fan in CHA_FAN 3. So I would need to have 2 fans plugged into either CHA_FAN 1 or 2 assuming I can get it working properly. |
Posted By: Xaltar
Date Posted: 07 Dec 2016 at 11:30pm
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I wouldn't know what to recommend, I used the one that came with my Corsair H105 AIO cooler. As a general rule I would go for something in a medium price range and avoid the super cheap and super expensive. -------------
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Posted By: Znastyyy
Date Posted: 08 Dec 2016 at 12:11am
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" rel="nofollow - Thanks, as for the fan speed issue. What would you recommend me doing to trouble shoot/solve the problem. EDIT: Most of the splitters I'm seeing are 4-pin inputs (which is fine as the motherboard supports 4-pin) with 4-pin outputs. Would this work as my fans are 3-pin? |
Posted By: Xaltar
Date Posted: 08 Dec 2016 at 12:31am
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Yes it will work fine. As for troubleshooting I would swap fans around and see if the fault is coming from a particular fan or the controller on the board itself. Play with the settings in the UEFI and see what works for you. Not all fans are the same and no manufacturer can ensure compatibility with all fans available, some simply do not work with the fan speed controls. That said, your fans are all corsair and I would assume all the same model so if one works then the others should too. There is no established way of troubleshooting that I am aware of other than trial and error and testing. -------------
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Posted By: Znastyyy
Date Posted: 08 Dec 2016 at 5:57am
| I switched around some of the fans and still no luck. Really just confused on how one of the dan headers works and the one next to it doesn't. |
Posted By: Znastyyy
Date Posted: 08 Dec 2016 at 8:04pm
| I emailed corsair. Maybe they will send me 4-pin fans since nobody can figure this outp |
Posted By: Xaltar
Date Posted: 08 Dec 2016 at 9:46pm
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I am sorry I couldn't be of more help, unfortunately without having the same fans you are using I can't run tests on my own system to figure out what is going on. I am running BIOS version P3.50 and both my CHA_Fan 1 and CHA_Fan 2 are adjusting with Fantastic Tuning and in UEFI. My fans are: Thermaltake Riing 14 3pin Fractal Design GP-14 3pin My Radiator fans are: Corsair SP120L I hope this extra info is of some help to you. Good luck -------------
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Posted By: parsec
Date Posted: 09 Dec 2016 at 12:00am
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" rel="nofollow - 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? ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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Posted By: Xaltar
Date Posted: 09 Dec 2016 at 12:08am
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Thanks for dropping in Parsec. I tend to favor setting the chassis fans to monitor motherboard temps because it keeps them more consistent rather than revving up and spinning down every time the system is under load. I set the fans on a custom curve with them dropping to about 20% under 40c and spinning up to 50% at 45c then 100% at 50c+ (50c never happens in my system). It is useful to set the rear exhaust fan to monitor the CPU if heat is a concern, that should help dump the hot air out of the case faster when needed. I tend to use reasonably powerful air coolers so heat isn't usually a factor in my builds and now with water cooling it is even less so. -------------
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Posted By: Znastyyy
Date Posted: 09 Dec 2016 at 7:29am
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" rel="nofollow - 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. |
Posted By: parsec
Date Posted: 09 Dec 2016 at 10:08am
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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. ------------- http://valid.x86.fr/48rujh" rel="nofollow">
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Znastyyy wrote:Posted By: Znastyyy
Date Posted: 09 Dec 2016 at 10:52am
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? |