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Trigering max speed manually

saulyx

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Dec 28, 2010
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Hey guys, so I got couple of fans laying around(Gigabite E121225SL) 12v,

Nothing amazing, I'm powering them with 10v phone charger, however I see 3 sables, black red and yellow, black and red are clear, however im guessing the yellow is to adjust the speed(motherboard does that), question is, how do I replicate motherboard interaction with the fan? to make it run at 100%


Please help,
Thanks
 

newtekie1

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With 3-pin fans the third wire is used for speed sensing only. It is not used to control the fan speed. The motherboard would vary the voltage supplied to the fan on the 12v+ wire to adjust the fan speed in this case.
 

saulyx

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Wow, fast reply! Thanks, so the slow looking speed is because im missing 2 volts?

What would happen if I linked 3 fans paralel? so + to - to + to - to + to - and then hooked that up to 26v? would it work?

Thanks
 

newtekie1

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Messages
28,472 (4.23/day)
Location
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Processor Intel Core i7 10850K@5.2GHz
Motherboard AsRock Z470 Taichi
Cooling Corsair H115i Pro w/ Noctua NF-A14 Fans
Memory 32GB DDR4-3600
Video Card(s) RTX 2070 Super
Storage 500GB SX8200 Pro + 8TB with 1TB SSD Cache
Display(s) Acer Nitro VG280K 4K 28"
Case Fractal Design Define S
Audio Device(s) Onboard is good enough for me
Power Supply eVGA SuperNOVA 1000w G3
Software Windows 10 Pro x64
I believe that would end up frying the first or second fan in the circuit.
 
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