GA P35-DS3L and speedfan

[night_wolf_in]

im trying to control the speed of the casing fans. i have the cooler master Centurion 5 http://www.newegg.com/Product/Product.aspx?Item=N82E16811119077 n i wish to control the fan speed of intake 80mm and 120mm flowing out of the case. i can see the speed of the three fans. 80, 120 and cpu. but yet i cant reduce it using speed fan.

my fans are connected to the motherboard.

 

[Shadow703793]

You can only do this if those fans are PWM fans.

 

[night_wolf_in]

my cpu fan is PWM. and it is unabled in the bios as "PWM" yet it cant be controlled by speedfan.

the other two fans. are built in with the casing, so im not sure if they are pwm or not.

 

[nhobo]

3-pin fans are *not* PWM (pulse width modulation) and are not software controllable. The DS3L has two 4-pin fan headers and two 3-pin. One 4-pin is for the CPU fan, the other is available.

 

[night_wolf_in]

3-pin fans are *not* PWM (pulse width modulation) and are not software controllable. The DS3L has two 4-pin fan headers and two 3-pin. One 4-pin is for the CPU fan, the other is available.

alright. SO i checked it.

cpu fan is 4 pin. connected to CPU fan - in my case, it is controlled by mobo's bios. n cant be changed using speed fan. (unless if i dont know how to use speed fan, n i used it with my old built n it worked).

the other two fans are 3 pin.

so this rise another question. total 2.

1-how to control my cpu fan using speedfan.

2-if i buy two new fans with 4 pins "pwm" hw can i add them since i got only one spare 4pin fan header.

 

[nhobo]

Google "configure speedfan".

Arctic Cooling has PWM fans that daisy chain together.

 

[night_wolf_in]

ok.

what bout question 2? u think ill need fan speed controller to plug in more than 2 4 pin fan headers?

 

[nukemaster]

NOT TRUE

I have been controlling NON PWM fans for a while. the controller on many 3 pin fans is still pwm based as well....

To control fans you have to first make sure any bios level fan control is OFF....or go under advanced and set software controlled...

I will do a quick test for 3 pin on the P35 gigabyte boards and post back with how to do it

 

[Shadow703793]

^Then I guess it is dependent on the fan itself?

 

[night_wolf_in]

NOT TRUE

I have been controlling NON PWM fans for a while. the controller on many 3 pin fans is still pwm based as well....

To control fans you have to first make sure any bios level fan control is OFF....or go under advanced and set software controlled...

I will do a quick test for 3 pin on the P35 gigabyte boards and post back with how to do it

alright. i was able to control the cpu fan speed. as nhobe said, just google it (sowwy).

but the same way i configured my cpu fan, wont work for the 3 pin fans. so ill wait ur reply nukemaster

 

[nukemaster]

^Then I guess it is dependent on the fan itself?

Depends on the board. it has to have the ability to control fans,

 

[nukemaster]

I regret to inform you that for gigabyte, to save money on there lower end P35 boards, never quipped the boards with the needed electronics for fan speed control(even the board can only control the cpu fan)....

Very odd since even the cheapest Asus boards have it....

Sorry it looks like a fan controller will be needed.... or you would have to use the cpu fan header for a fan and run the cpu fan and a case fan at full speed......

Damn...note to self....don't assume. But its not a 4 pin thing since i controlled all the 3 pin fans on my P5W system

 

[nhobo]

There are two 4-pin fan headers on the DS3L. My best guess is the second one is PWM.

 

[night_wolf_in]

oh, that is sad i guess. then ill just have to bare with it. tell i can get myself fan controller+fans.

 

[nukemaster]

you may may be able to plug your loudest most annoying fan to the 2nd 4 pin connector(3 pin fans work....just plug it in right with the extra pin hanging over...the tab should align you...) and see if it is varied.

 

[night_wolf_in]

right. ill try that. tho i dont think i need it as now. coz the loudest fan i have is my GT's. n i aint changing it till i feel that voiding warrenty wont hurt me. thats all for it for now. thanks guys for ur time n everything.