i need help with the fans config!!!!!

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Astrit_1

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hello everybody

so i have a i7-6700k and a asus z170 pro gaming aura
i bought 4 Corsair ML Fans 120mm
two of them are connected on my h100i v2 cooler
the othert two ones on in the top on in the back directly connected on the mother board
i have all of thos on a S340 Elite case

look at the photo and the think that confusing me is the fan speeds, the chasis ML fans run up to 2400rpm at full load (connected direclty at the mother board fans headers) but not the cooler ones ( connected directly with the cooler) !!!!!!! wich run at 960rpm full load !!!!

also the the corsair h100i v2 the connecteur/wire that goes into the cpu_fan header is a 3pin ????

shouldnt this be a 4pin?????

2iifkw8.jpg

 
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A 4-pin connection is only required if the header involved is using the PWM Mode to control the fan(s) attached there. With the H100i system, your mobo CPU_FAN header is NOT doing the control work for the pump or the fans on its radiator. That work is done by the Corsair Link software, which communicates with the pump unit via the connection to a mobo USB2 header.

One of the important functions of the BIOS software that runs the CPU_FAN header is failure detection. It monitors the speed signal coming back to the header on its Pin #3. If the speed signal is missing, the BIOS will assume that means the fan on the CPU has failed and initiate rapid action to prevent CPU overheating and damage. That might be solely a message to you, the...
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Lutfij

Lutfij

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Your temps look fine actually under idle, regardless of where your fan RPM's are. Have you opened up Corsair's Link app and seen if you can tweak the fans to that maximum range? I would like to remind you though, that range of RPM would mean more noise. Pertaining to the fan header, yes it's 3 pin since the onboard controller on the pump regulates the speed of the fan as the CPU temps climb or fall.
 
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Astrit_1

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i dont care about noise.... i want to know as why the 2 cooler fans dont spins at the max speed at 100% ???

and another question: if i plug the 2 cooler fans on the cpu_dheader and cpu_opt will there be issues? can i still then control all my fans with fan xpert; will they run at mx speed when neede to?
 
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Lutfij

Lutfij

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You forgot to mention if you tried uninstalling and reinstalling your Corsair Link app since it's not being detected. According to your manual, page 1-18, the CPU_FAN and CHA_FAN headers are capable of tweaking via the software suite. CPU_OPT would be a mirror of what CPU_FAN is set to IMHO.

There's no mention of the cpu_dheader you speak of on your manual.

The AIO can detect fans at even 2000rpm's, last I checked off Google so this leads me to wonder if your cooler is compromised or of the OS is having trouble recognizing the unit.
 
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Astrit_1

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you seem to know this stuff. expolain to me this;
the corsair h100i v2 has two cables coming frrom the head pump. one is a 4 pin and th other one is a 3 pin ..... why???? why 3 pin? i connect my two ML 120 Pro here witch both are 4 pin!!!!!! and normally the other cable with connecte to the cpu_fan header is a 3 pin also?????

this is the thing thats confusing me most???? because its 3 pin i dont think im getting the full potential out of these ML fans that are cooling the h100i v2!!!!

as i sad in the photo
i run all ML fans to theyr max speed and the two fans witch i have them pluged into the motherbnaord header are runing at 2400 rpm
the ones that are connected with the h100i v2 max speed is 950 rpm ?????

any solutions hehehehhe
 
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Paperdoc

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Look in your mobo manual on p. 2-39, heading "Chassis Fan 1/2/3 Q-Fan Source". By default it is set to use the temperature sensor inside the CPU chip. But for case ventilation control, it should be using the separate sensor built into the motherboard, and that is probably cooler than inside the CPU. So for EACH of your CHA_FAN headers, change this setting to "MotherBoard". Then be sure to SAVE as you Exit and the machine will reboot with these new settings. I expect those case fans will run more slowly when they are being based on the mobo temperature.

On the Corsair H100i CPU cooling system, the power and control of the fans on its radiator is done by that system itself and not by the mobo CPU_FAN header. That is why the radiator fans connect to the pump unit, and that unit in turn is connected to a mobo USB2 header so the Corsair Link software can communicate with the pump. There also is a connection from the pump to the mobo CPU_FAN header, but that is only to send the pump speed signal to the header. That signal is on Pin #3 of the connection. There is NO need for the PWM signal from header Pin #4 to be sent to the pump. But the mobo checks the speed signal coming via Pin #3 from the cooler (a fan or, in your case, a pump) for the CPU to be sure it is working. No signal is understood to mean the cooler has failed, and the system shuts down very quickly to protect it and will not re-start unless it gets a speed signal. On some mobos it is possible to turn off this safety feature, but it is NEVER wise to do so. So the pump NEEDS to send that signal to the CPU_FAN header.
 
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Astrit_1

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ok.... so i get an extension 4pin cable and connect the h100i v2 3pin header to the cable and the other end to the cpu_header? will this change anything, anything at all?

because check this out
ive been diggin into the bois asus qfan control thing.... and i run the optimaze qfan and when it finishes the process all the time the two chasis fans are configured like they should and the PWM is seleted but its making the cooler fans at 100% all the time!!!!!!!!!!!
also when i run the asus fan xpert 3 software i does the same thing !!!!

i dont have any problems as of right know. ive done some testing cpu temps looking grat even on 100% load but this fan things are bugging me out and i would like to understand why!!!!!!

and thnx to anyone who responded or willl respond
 
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Paperdoc

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Your first paragaph there confuses me. It sounds like you are saying that the fan cable from your H100i pump unit is NOT plugged into the mobo CPU_FAN header. Is that right? Is should be, in order to deliver a speed signal from the H100i cooling system to your mobo CPU_FAN header for purposes of monitoring for pump failure.

But no, that will NOT change the performance of the case fans.

Re-read what I said about the manual on p. 2-39, heading "Chassis Fan 1/2/3 Q-Fan Source". The point is that, by default, ALL the fan headers on your mobo are set to be guided by the temperature sensor inside the CPU chip, according to the manual. But case ventilation fans should be guided instead by the sensor built into the mobo. So you should change the BIOS settings for the CHA_FAN headers to use the MotherBoard source, rather than the CPU source. That ought to change what those case fans do.
 
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Astrit_1

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yes they are conneceted into the cpu_fan,,,,,we are a little bit confused here but we'll get there.

explain to me this:

why can my two chasis fans witch are connected directly to the mobo can run at 2400rpm
but
the two fans that are connected to the h100i v2 run max at 950 rpm?

also when i run the fan xpert fan tuning, it tunes well the chaiss fans ( as the temps go up so do the fans rpm) but it tunes nothing on th h100i fans, sometiles it says 950 rpm for all the temps sometimes it says 0 rpm

info: all the fans are ML 120 Pro 4pin
 
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Paperdoc

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Fan Xpert is a utility included with your ASUS mobo on its CD. It can display for you the speeds of fans plugged into its mobo fan headers according to the signals the fans send in Pin #3 of each header. The speeds it shows you for the two case cooling fans are very likely correct, and as you say they do respond to actual temperatures.

The fact that you are using the H100i liquid cooling system for your CPU changes the picture for the CPU_FAN header only. There is a connection from that system to the CPU_FAN header for the purpose of sending the mobo a speed signal. BUT the signal sent to the mobo header may be the PUMP speed from that system, and not the speeds of its two fans on the radiator. You see, control of the Corsair system is done by Corsair's own software utility, Corsair Link. If you use THAT utility it can show you the speeds of its own two fans and the speed of its pump, and you will see them respond to CPU temperature changes. But the Corsair Link software does not send the speeds of its pumps to the mobo, so ASUS Fan Xpert does not know about them and cannot change them. Moreover, Corsair Link does not allow the Fan Xpert software to control or configure the H100i system. Only Corsair Link can do that.
 
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Lutfij

Lutfij

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The pump is responsible for controlling the fans and ramps up or down based on the CPU temps and what the onboard controller on the pump dictates. The wire that runs out of the pump controller, one is a 4 pin header and the other is a 3 pin that is because when dealing with PWM fans, only one fan is necessary to provide the signalling that is later reported back to the CPU_FAN header. When you deal with fans that are DC/voltage controlled, essentially you have fans which are in series and the voltage is applied across the daisy chain.

For PWM fans, you are given a direct 12v power to the fans and via the signalling, the voltage is cut of in intervals to manage the necessary RPM(dictated by the board/CPU/fan header).

If you didn't know, the Hydro series of coolers initially needed the pump to be connected to a fan header which gave a constant power source. In fact you were suggested to disable any fan/voltage regulation if the fan header had it. The fans necessary to operate and push/pull air through the radiator where suggested to be connected to the CPU_FAN header.

As I've said prior, if the fans don't go to their max then the issue stems from the pump header or the Corsair Link app. You may want to try and pick up something like this and have all your fans and the pump connected to the CPU_FAN header. Issues with Corsair Link isn't a new thing, mind you, in the past the release of a new app revision took care of previous issues.

Per this video, see if disabling CPU Q-Fan in BIOS changes anything for you and the setup of the connected AIO fans before you by the PWM fan splitter I suggested above.
 
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Astrit_1

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great now i get it ..... last question.

why is the header of the h100i v2 that connects to the cpu_fan a 3pin? isnt that suppost to be 4 pin too? are the cooler fans getting the right signals as how fast they should be runing even if its 3 pin?
 
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Paperdoc

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A 4-pin connection is only required if the header involved is using the PWM Mode to control the fan(s) attached there. With the H100i system, your mobo CPU_FAN header is NOT doing the control work for the pump or the fans on its radiator. That work is done by the Corsair Link software, which communicates with the pump unit via the connection to a mobo USB2 header.

One of the important functions of the BIOS software that runs the CPU_FAN header is failure detection. It monitors the speed signal coming back to the header on its Pin #3. If the speed signal is missing, the BIOS will assume that means the fan on the CPU has failed and initiate rapid action to prevent CPU overheating and damage. That might be solely a message to you, the user, to alert the problem. A second protection system, based on the temperature measured inside the CPU chip, will take a different action if that temperature gets too high: it will slow down the system clock a LOT to reduce the heat generation, and if the temp continues to rise it will shut down the entire system. Many mobos also have a third protection scheme. If the CPU fan speed signal fails, it will not wait for the high temperature to happen; it will issue a warning, then shut down the system right away. This last protection system, IF it is in your mobo BIOS, can be turned off. The design of the H100i system includes sending to the CPU_FAN header a valid speed signal to tell the mobo that the CPU cooling system is working OK. I believe it is actually the pump speed, not the radiator fan speeds. With that signal coming in the CPU_FAN header failure detection system can operate normally. That still is not part of the CPU cooling CONTROL system, though, and it only requires a connection on header Pin #3.
 
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