Solved

3 pin fan with speed control

Hello i asked a question and im not sure i asked it the right way for the answer i as looking for..

I have a antec 300 illusion i just got an am going to be building as soon as i can.
The fans are 3 pin and they have speed control connected to them. Im looking at some connectors that are molex to 2 pin from what i read where they are being sold.
I as wondering if them only being 2 pin will effect the fan and me being able to control the fan speed with the built in fan control on each fan.

here is the sale.. im looking at this 1 because its close to me and i want to get started asap.


http://www.ebay.com/itm/160562873583?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2648#ht_500wt_986

I hope this helps me understand this time. :D -Jon
25 answers Last reply Best Answer
More about speed control
  1. if you remove that little switch that act like a resistor to control the speed do not connect that to the psu or you will blow the fan and maye something else ,
  2. the fans will run 100% without any control is all.

    i have connected old 2 pin fans to 3 pin connections on my motherboard.
  3. You cant control the fans which are directly plugged to the PSU .

    If you use that 3 pin to molex than you cannot control the fan speed .
  4. scout_03 said:
    if you remove that little switch that act like a resistor to control the speed do not connect that to the psu or you will blow the fan and maye something else ,



    I mean will the fans work will if they are and the adapter i use to the psu is only a 2 pin.. i want to be able to use the fan control is all..
  5. it wont work there not made for that
  6. carnal sage said:
    I mean will the fans work will if they are and the adapter i use to the psu is only a 2 pin.. i want to be able to use the fan control is all..

    lts break down this.

    the 3 pin has a power, ground and control.
    the 2 pin has a power and ground.

    without the control pin connected the fan will default to running 100%/.
  7. hasnain11 said:
    You cant control the fans which are directly plugged to the PSU .

    If you use that 3 pin to molex than you cannot control the fan speed .



    The fans have 3 speed fan control on them.
  8. Anonymous said:
    lts break down this.

    the 3 pin has a power, ground and control.
    the 2 pin has a power and ground.

    without the control pin connected the fan will default to running 100%/.



    Even i the fan control is is built into the fan?
  9. carnal sage said:
    Even i the fan control is is built into the fan?

    w/o the tachometric signal, the fans will not know what speed they are suppose to run at and will default to 100%.
    http://www.allpinouts.org/index.php/Motherboard_%28CPU%29_3_Pin_Fan_Connector
  10. ^^ Very nicely explained .
  11. have to ?
  12. Ok i get it , you can control it with that LHS switch .

    See like this ? :- http://hardwarelogic.com/articles/reviews/case/AntecMinuet300/AntecMinuet300_Fan.jpg
  13. Just directly connect the male molex with PSU female molex.
  14. hasnain11 said:
    Ok i get it , you can control it with that LHS switch .

    See like this ? :- http://hardwarelogic.com/articles/reviews/case/AntecMinuet300/AntecMinuet300_Fan.jpg



    Exactly what they have yes.. without the 3 pin will the controller work still?
  15. Yes, it will work without the 3 pin.

    Just plug that male molex to PSU's female molex.
  16. hasnain11 said:
    Yes, it will work without the 3 pin.

    Just plug that male molex to PSU's female molex.



    WEll its almost like that mine just have a 3 pin that im buying an adapter for is why i asked if the adapter is 2 pin would it work hehe
  17. carnal sage said:
    WEll its almost like that mine just have a 3 pin that im buying an adapter for is why i asked if the adapter is 2 pin would it work hehe

    what do you mean "ALMOST"?
  18. Best answer
    carnal sage said:
    WEll its almost like that mine just have a 3 pin that im buying an adapter for is why i asked if the adapter is 2 pin would it work hehe


    Yes, it will work.
    I also use that with my front case fan.
  19. Best answer selected by carnal sage.
  20. Anonymous said:
    what do you mean "ALMOST"?



    I mean mine has a 3 pin and picture had a 4 pin molex.. but mine has the fan control like t hat picture on the of it...
  21. carnal sage said:
    I mean mine has a 3 pin and picture had a 4 pin molex.. but mine has the fan control like t hat picture on the of it...

    yeah i get it now, thanks for taking the time to explain it to my thick skull.

    glad you found an answer :)
Ask a new question

Read More

Heatsinks Fan Overclocking