2 Fans, 1 fan connector

[BrunoZockt]

Hey,
I know these or similar questions have been asked really often, but I couldn't find a solution for my problem anyways. I need to put 2 Fans into 1 sys_fan connector on my MoBo. I'm german, so sorry if something is hard to understand.
My specs:
1. Fan: 200mm, 0.42A, 3-pin connector
2. Fan: 120mm, 0.25A, 4-pin connector, has LEDs (don't know if this matters?)
MoBo: 1 CPU-fan connector (SURPRISE: used by the CPU-fan), 1 sys_fan connector (4-pin)

My Questions:
1. How can I solve this (maybe under 20$)?
2. Would I be able to control both fans individual? (yes(how)/no)
3. If not, would I at least be able to control both together? (yes(how)/no)
4. Which software/option in BIOS (I have UEFI)?
5. How could I control the Fans, keeping in mind that the first moves around twice as much air as the second at max RPM. Would I be able to say something like "Both at 50% speed", meaning that the first still moves twice air, or could I say something like "Both get 0.2 A" meaning that both move almost the same air?

If you got any Questions, ask!

Thanks in advance,
Bruno

 

[Rampy216]

You can get a fan splitter or a fan hub in amazon
I have this exact one:
https://www.amazon.de/Thermaltake-AC-023-AN1NAN-A1-Commander-PWM-L%C3%BCfter-schwarz/dp/B015KG6HP0/ref=sr_1_3?ie=UTF8&qid=1480777302&sr=8-3&keywords=fan+hub

In my case, I have the gigabyte am3+ 990fxa-UD3 motherboard
this motherboard doesnt exactly lets me controle the fan curve/speed/percent almost at all so I imagine its a motheboard thing.
I dont think you will be able to control both fans individualy
I can control both fans but I think its a UEFI think, if you can controle one fan you can controle all of the fans connected to the same hub
in some motherboards you can control the fans through the UEFI/BIOS but on some (mine for example) you cant. I use a software called "SpeedFan" to control my fan's speed
through SpeedFan you can control both fan speed percentage but im not sure what happens if you plug in two completly different fans

 

[atljsf]

you can also buy this, it is what i have here

https://www.amazon.de/Kabelverteiler-Y-Adapter-Stecker-M%C3%A4nnlich-Buchsen/dp/B009XA2TZM/ref=sr_1_3?ie=UTF8&qid=1480779645&sr=8-3&keywords=fan+y

i have that same fan sizes but none has leds, i don't like leds there, the led itself doesn't use a real ammount of amps or volts, is almost inperceptible for the connector afik

the system will see those two fans as only one fan and will handle them with the same parameters so make sure both fans have similar speed control and speed capabilities to avoid weird results but if you set them to medium speed or low speed you should be fine i think, at least that is what i did and i can't hear them

 

[BrunoZockt]

Thanks for the fast reply Rampy and atljsf! (I don't know how to awnser directly, sorry)
Both of your products seem viable, but I don't think that they are a real solution. Because, as said, my 3-pin Fan is way bigger, so when the software gets the RPM of my 4-pin fan (let's say around 1000 RPM, which is around 60% speed), it will tell both fans to move at 1000RPM, which would result in my bigger fan running at full speed...
Would there be a way to control the speed in percentage, so that my big fan moves at 60% speed (600RPM), while my small fan moves at 60% (1000RPM)?

 

[atljsf]

the multihead solution posted will not do what you mention

it wil just deliver power and control based on one sensor telling those fans to speed up or down

in that case you could need a more expensive solution, something like this

https://www.amazon.com/Kingwin-Channel-Multi-Fan-Controller-FPX-001/dp/B00DP9WRZY/ref=sr_1_5?ie=UTF8&qid=1481300622&sr=8-5&keywords=fan+controller

or

https://www.amazon.com/Sunshine-Tipway-Dashboard-Internal-Temperature-Controller/dp/B00QN3RTVQ/ref=sr_1_1?ie=UTF8&qid=1481300622&sr=8-1-spons&keywords=fan+controller&psc=1

it doesn't have to be those exactly, i think that it doesn't even use the mainboard at all, it lets you spin up or down the fan connected to each knob, it is a expensive, big and in some circumstances not viable solution for those without a 5 1/4 bay but is in general, what you say you need for this specific situation

about the big fan, those fans can't reach big speeds, in general those only receive a voltage change, a amp change that tells them to speed up or less volts/amps to speed down, the controller doesn't tell it to go to 1000 rpm exactly, the fan can't report those speeds or at least, the mainboard will not know in most models what rpms is running at, only says 40, 60%, 80%

just for testing purposes, knowing that are only two fans, i would try the "Y" connector and see how it goes, a 200 mm fan moves so much air at vbery low speeds, it shouldn't reach 800 rpm, the 120 mm almost the same air but is a bit noisier because most times can reach 1200rpm, you shouldn't be having noise problems i think but only you can determine what is tollerable on your pc