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Thread Starter 
Tried to NOT start a new thread, but I couldn't find someone who was having the same issue.

so I have 11 fans in a Corsair 750D:
2x 120mm Thermaltake Riing in front as intake/push for my H100i GTX
2x 120mm Corsair stock fans that came with my H100i GTX as pull in front
2x 120mm Arctic F12 PWM PST on the bottom as intake
1x 120mm Thermaltake Riing in front of my GPUs to help keep them cool
3x 120mm Arctic F12 PWM PST as exhaust on top
finally
1x 140mm Corsair fan (came with my 750D) as exhaust at the rear

The fans on my H100i GTX & GPU are all on molex as they don't make much noise.
I have all the fans on the top, rear, and bottom on the fan controller, which isn't really necessary as the F12 PWM PST can daisy chain, so the Mix 2 is kind of superfluous, but I like to be able to control noise.

Yesterday while I was rewiring my tower/cleaning the cat hair out, I unplugged the fan controller and while hooking it back up I noticed that channel 1 & 6 switch no matter what.

I have the front bottom intake fan on C1, and the rear exhaust on C6. if I raise C1 to max, then the rear exhaust fan speeds up; if I raise C6 to max then the front intake speeds up.

I thought simple switch, I'll just swap the cables around. Nope! same thing happens no matter how I wire it.
each other channel and fan raise/lower speeds accordingly, it's the first and last that won't play nice for whatever reason.

I know it's not a huge issue, and 90% of the time I keep them at minimum anyway, until the heat comes on.
But it's minor annoyances like this that get my goat.

If anyone is having the same problem, e.g. if I missed this somehow (I searched the way I would have phrased it) please shed some light on this.
Any comments and advice is welcome!
Thank you!

The attached image is missing the 120mm directly in front of/zip tied to the GPUs
Monolith
(15 items)
 
  
CPUMotherboardGraphicsGraphics
i7 5930k MSI X99A SLI Krait EVGA GTX 970 SSC EVGA GTX 970 SSC 
GraphicsRAMHard DriveCooling
EVGA GTX 970 SSC Crucial Ballistix Elite Samsung 950 Pro Corsair H100i GTX 
OSMonitorKeyboardPower
Windows 10 pro Acer GN246HL Logitech G710 EVGA G2-1000W 
CaseMouseOther
Corsair 750D Logitech G602 NZXT Sentry Mix 2 
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Monolith
(15 items)
 
  
CPUMotherboardGraphicsGraphics
i7 5930k MSI X99A SLI Krait EVGA GTX 970 SSC EVGA GTX 970 SSC 
GraphicsRAMHard DriveCooling
EVGA GTX 970 SSC Crucial Ballistix Elite Samsung 950 Pro Corsair H100i GTX 
OSMonitorKeyboardPower
Windows 10 pro Acer GN246HL Logitech G710 EVGA G2-1000W 
CaseMouseOther
Corsair 750D Logitech G602 NZXT Sentry Mix 2 
  hide details  
Reply