All Fan Controllers not working properly

[CobaltSparkz]

Hey!

Basically, I've had two fan controllers which plug into the USB header on the motherboard, however my PC fans just constantly pulse - Revving up and down whenever they feel like it.

(Video of revving to better understand - https://youtu.be/O5DKl_qQ_CE )

After months of testing with Corsair tech support, and 3 new Corsair Commander Mini Units, it was deemed that it would not work properly with my motherboard.

I bought an NZXT Grid V2+, and, after installation, to my dismay, the same thing happened (Even with hysteresis enabled).

Also, both units are powered individually from the PSU - Corsair via SATA, NZXT via Molex - the USB is only for information transfer.

All fans, barring the CPU fan, are 3 pin - However, the NZXT GridV2+ only has 3pin Male connectors on it.

PC Specs (Custom build my myself - Owned since October 2014)
OS: Windows 10, build 14393
CPU: Intel i5 4670K (Stock, 3.4GHZ)
GPU: MSI Nvidia GTX 760
Motherboard: MSI Z97 PC Mate (old), MSI Z97 Gaming 3 (New)
Memory: 16gb (4x4GB) Corsair Vengeance 1600MHZ DDR3
Storage: 2x 256GB Samsung 850 Pro, 1x 2TB Seagate Barracuda
PSU: Corsair AX860
Fans: 2x Corsair AF120MM (3 Pin, on Y Splitter), 2x Corsair AF140MM (3 Pin, on Y Splitter), Stock Corsair 140MM (3 Pin), Stock Corsair 120MM (3 Pin), Coolermaster Hyper T4 CPU Cooler (4 pin)
Case: Corsair Carbide 300R

Steps tested:
Bios Flash/Update.
Previous version of Corsair Link software installed (Includes deleting roaming data e.t.c)
Tested different "profiles" on Corsair Link Software, and NZXT CAM software.
Swapped connector on other USB Header on Motherboard.
Changed Legacy USB Support.
Tested on other PC, works fine.
Tested fans individually, with no splitters.
Tested with now three motherboards - Doesn't work on either of mine (PC Mate or Gaming), tested on Friends' PC and works fine.

Tested different PSU as well.

 

I'm now inclined to believe it's something to do with my OS, as that's really the only thing I haven't "replaced".

I am at wits end - I have to use a controller/hub, as the headers on my motherboard aren't sufficient - only three of 5 are controllable, and the MSI Command Center wasn't exactly reliable when it came to controlling the speeds - the vast majority of the time, it sounded like a small jet engine was testing its afterburners next to me.

Any assistance is greatly appreciated.

Sparkz

[Guest]

Shouldn't fans that support controllers have 4 pins?

[CobaltSparkz]

2 hours ago, Puhtutz said:

Shouldn't fans that support controllers have 4 pins?

From what I've read, no - I believe 3 pins are regulated via voltage, rather than 4 pin which is managed with Pulse Width Modulation. AFAIk, the only benefit from PWM fans is that the fans can run at lower speeds as they're not regulated/controlled by voltage

[Guest]

22 hours ago, CobaltSparkz said:

From what I've read, no - I believe 3 pins are regulated via voltage, rather than 4 pin which is managed with Pulse Width Modulation. AFAIk, the only benefit from PWM fans is that the fans can run at lower speeds as they're not regulated/controlled by voltage

Okay, well the more you know  

 

Well my controller that came with the case didn't ever work I think.

[CobaltSparkz]

Just done a completely fresh install of Windows 10, same issue occurs. Literally makes no sense ._.

[CobaltSparkz]

After more research and testing, the only fan that works "properly" is my CPU fan, which happens to be 4 pin, or PWM. I'm under the impression the Corsair Commander mini unit will not work as it appears to be trying to control voltage-controlled fans with PWM, rather than actually controlling them with voltage. Corsairs default presets are: Performance, Balanced and Quiet. If I make my own custom curve, the pulsing is a lot less noticeable, but I'm under the impression that their default presets are trying to control my fans with pulses, which explains the revving up/down of the fans