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Trigering max speed manually

saulyx

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#1
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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#2
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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#3
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

Semi-Retired Folder
Joined
Nov 22, 2005
Messages
24,277 (5.51/day)
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Location
Indiana, USA
Processor Intel Core i7 4790K@4.6GHz
Motherboard AsRock Z97 Extreme6
Cooling Corsair H100i
Memory 32GB Corsair DDR3-1866 9-10-9-27
Video Card(s) ASUS GTX960 STRIX @ 1500/1900
Storage 480GB Crucial MX200 + 2TB Seagate Solid State Hybrid Drive with 128GB OCZ Synapse SSD Cache
Display(s) QNIX QX2710 1440p@120Hz
Case Corsair 650D Black
Audio Device(s) Onboard is good enough for me
Power Supply Corsair HX850
Software Windows 10 Pro x64
#4
I believe that would end up frying the first or second fan in the circuit.