• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Trigering max speed manually

saulyx

New Member
Joined
Dec 28, 2010
Messages
3 (0.00/day)
Likes
0
#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

Semi-Retired Folder
Joined
Nov 22, 2005
Messages
24,411 (5.50/day)
Likes
10,541
Location
Indiana, USA
Processor Intel Core i7 8700K@4.8GHz(Quick and dirty)
Motherboard AsRock Z370 Taichi
Cooling Corsair H110i GTX
Memory 32GB Corsair DDR4-3000
Video Card(s) PNY XLR8 GTX1060 6GB
Storage 480GB Crucial MX200 + 2TB Seagate Solid State Hybrid Drive with 128GB OCZ Synapse SSD Cache
Display(s) QNIX QX2710 1440p@120Hz
Case Fractal Design Define S
Audio Device(s) Onboard is good enough for me
Power Supply Corsair HX850
Software Windows 10 Pro x64
#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

New Member
Joined
Dec 28, 2010
Messages
3 (0.00/day)
Likes
0
#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
24,411 (5.50/day)
Likes
10,541
Location
Indiana, USA
Processor Intel Core i7 8700K@4.8GHz(Quick and dirty)
Motherboard AsRock Z370 Taichi
Cooling Corsair H110i GTX
Memory 32GB Corsair DDR4-3000
Video Card(s) PNY XLR8 GTX1060 6GB
Storage 480GB Crucial MX200 + 2TB Seagate Solid State Hybrid Drive with 128GB OCZ Synapse SSD Cache
Display(s) QNIX QX2710 1440p@120Hz
Case Fractal Design Define S
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.