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Fans with 4 pins

Discussion in 'Overclocking & Cooling' started by Tintai, May 18, 2013.

  1. Tintai

    Tintai

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    Hey guys

    I looking for three fans with 4 pins.
    My mobo have only 4 pins connector.

    Hmm, or three adapter from 3 pins to 4 pins. By is good?

    Thanks

    ~Tintai
     
  2. TheLaughingMan

    TheLaughingMan

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    3-pin connectors will fit on 4-pin mobo headers. You do not need 4-pin fans. That is why the plastic guide tab is slight offset to ensure you connect to the 3-pins you need for operation.
     
  3. de.das.dude

    de.das.dude Pro Indian Modder

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    as above, 3 pin fits all 4 pins, and all four pins fit 3 pins.

    the extra wire is for the motherboard to control the FAN with PWM.

    but even the 3pin fans are controllable on motherboards now thanks to inbuilt fan controllers that change the voltage from 5,6V to 12V
     
  4. Tintai

    Tintai

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    I need only adapters? And evreryfing will be ok?
     
  5. TRWOV

    TRWOV

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    No adaptaters needed:

    [​IMG]
    [​IMG]
     
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  6. d1nky

    d1nky

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    is it still called 'backwards compatible' when the board can go from PWM to analog voltage control?

    ill keep this thread on my subs because people ask all the time.
     
  7. Geofrancis

    Geofrancis

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    Most motherboards with a 4 pin header can only control the speed of a 4 pin fan. A few motherboard can vary the voltage to control a 3 pin fan but that requires extra hardware that is absent from budget boards. Check in your bios in the fan control section you might have the option to switch between PWM and Voltage so you can control the speed of a 3 pin or 4 pin fan. Without it a 3 pin fan will just run at full speed on a 4 pin header.
     
  8. Ikaruga

    Ikaruga

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    Speedfan can control the fans on most of the motherboards quite well, and it's doing it without any kind of bios support. You can set it to spin up/down the fans based on the CPU,GPU load or the temps of other parts, etc. There are similar solutions on Linux as well ofc.
     
  9. Geofrancis

    Geofrancis

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    The motherboard still has to have the physical hardware on the motherboard to vary the voltage on a 4 pin fan header. Speedfan can only manipulate the fans the bios can.
     
  10. Ikaruga

    Ikaruga

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    No? It accesses and controls the hardware directly. It's not the win95 era anymore when operating systems and programs were tied to the bios settings. There are a lot of motherboards out there what Speedfan can control while the bios has nothing for it or option only for 1 fan perhaps. Check out the official list which is far from complete tbh.
     
  11. de.das.dude

    de.das.dude Pro Indian Modder

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    speedfan is an epic fail on most new motherboards.


    Most manufacturers will bundle their H/W monitoring software with it.
    ASRock provides a really good one.


    [​IMG]
    i can control all the fans on my motherboard.
     
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  12. Geofrancis

    Geofrancis

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    I used speedfan for nearly 10 years i know whats capable of. What I mean is unless the fan is plugged into a fan header with voltage control or PWM tied to the smbus then you cannot control it with anything. A lot of boards have dumb headers that only supply 12v.
     
  13. Tintai

    Tintai

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    Nice, I try this. Thanks!

    @edit:
    It's work, very nice.
     
    Last edited: May 18, 2013
  14. Ikaruga

    Ikaruga

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    It was just an example, I know many other programs exists.

    I agree, but you said "Speedfan can only manipulate the fans the bios can.", which is not true. I only reflected to that.
     
  15. de.das.dude

    de.das.dude Pro Indian Modder

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    i was countering the point when you said speedfan works on most motherboards. which is false. most post 2010 motherboards will not work.

    also speed fan is a very bad tool. its confusing. it wasnt made properly for use. it still looks like its a beta version.
     
  16. Jetster

    Jetster

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    Cougar has some nice 4 pin fans reasonably priced if you get them on sale. You can use ether as they mentioned but the 4 pin fans will change speed as needed
     
  17. Geofrancis

    Geofrancis

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    What you can also do is plug 4 pin fans onto a dumb 3pin header then connect the pwm wire to your CPU fans pwm pin so it can control the speed of both fans. My computer has 3 fans controlled by the CPU fan but plugged into 3 different plugs so I can monitor the rpm of each fan.

    Speed fan used to be good. It was almost the first program of its type and it was great because there was no alternatives but now every motherboard comes with it's own software.
     
    Last edited: May 19, 2013
  18. Aquinus

    Aquinus Resident Wat-man

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    He is talking about his Gene V, which isn't like that. Every fan connector on my motherboard provides a 4-pin connector so I can drive something like 6 or 7 PWM fans with just my motherboard. Most high-end ASUS boards now don't have strictly +12v pass-through. It eliminates the purpose of having the connector on the motherboard in the first place. I would imagine that the Gene has at least 3 or 4 fan connectors with control and sensing.
     
    Last edited: May 19, 2013
  19. Tintai

    Tintai

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    Gene V has 3 connector with 4 pins.

    For now, two my fans work in ~600 RPM and one ~1600 RPM. It's good?
     
  20. TRWOV

    TRWOV

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    Depends, what's their original specifications?
     
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  21. Tintai

    Tintai

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    Two from case and one I bought. Cooler Master fan but I don't know what's their specifications. But one of them make a noise and then calms down. And again. But temperatures is ok.
    Before I had all fans(except fan next to the CPU fan) connected to PSU.
     
  22. Hood

    Hood

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    I agree, the BIOS or Windows program can't control voltage in a circuit without a built in (hardware) voltage regulator. So if a 3-pin fan header has a setting in BIOS associated with it, it has voltage regulation. I assume that most 4-pin headers on recent motherboards also have voltage reg. on the 2nd pin, (RPM on the 3rd, PWM on the 4th pin), but probably not on the cheapest boards.
     
  23. mm67

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    At the moment I have these :
    Gigabyte Z68XP-UD4
    Gigabyte Z77X-UD3H
    Gigabyte Z77X-UD5H
    Asus Maximus V Formula
    Asus Maximus V Gene
    Asrock Z68 Extreme3Gen3

    And all work great with Speedfan...
     
  24. Hood

    Hood

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    Speedfan always gave me bad sensor readings and sometimes the wrong hardware info, and I've tried it on almost every system I've built, rebuilt, or worked on. Any program exhibiting such behavior is unreliable to say the least. I only tried it on all those systems to see which temp monitoring program works best on a given platform or configuration, and it always worked worse than the others (Real temp, HWiNFO 32/64, HMonitor, Open Hardware Monitor, etc.) as far as accuracy, resource useage, etc. I almost always use HWiNFO to monitor temps, and I prefer a manual fan controller for fan speeds.
     
  25. Ed_1

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    On most ASUS P8z77 xxx AFAIK the CPU_fan and OPT_fan only is controlled by PWM, you need 4 wire fan at those headers or the 3 wire run 100% .

    All other chassis headers run voltage or PWM so support for both 3 an 4 wire fans .
     

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