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How to change cpu fan voltage?

post #1 of 8
Thread Starter 
Hi guys,

I've just finished assembling my PC for the first time. I installed the thermaltake water 2 performer and it says you need to make sure the pump is running at full speed.
I connected the rad fan cable to the CPU_FAN and the pump cable to SYS_FAN but I don't understand how to change the speed/voltage?

Sorry for the noob question it's my first build redface.gif, any help would be greatly appreciated.


Edited by Dangur - 3/18/13 at 9:01am
post #2 of 8
You can set it to max in your bios.
It usually adjusts it according to the CPU temperature.

Some motherboards allow fan speed control at the software level. If this is the case you can use speedfan. But it is tricky to set up hmmsmiley02.gif
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post #3 of 8
What motherboard? Fan headers support no adjustment, voltage adjustment, and/or PWM adjustment.

What does your BIOS screen say about fan speed and fan modes?
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post #4 of 8
Thread Starter 
Quote:
Originally Posted by DuckieHo View Post

What motherboard? Fan headers support no adjustment, voltage adjustment, and/or PWM adjustment.

What does your BIOS screen say about fan speed and fan modes?

MB is Gigabyte GA-Z77MX-D3H. I uploaded pic of the bios.
post #5 of 8
Quote:
Originally Posted by Dangur View Post

MB is Gigabyte GA-Z77MX-D3H. I uploaded pic of the bios.

Is your fan plug 3-pins or 4-pin?

If is is 4-pin, then you can use the fan header's PWM mode ("Slope PWM" in your specific case). If it is 3-pin, check if there is another non-PWM mode is supported.
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post #6 of 8
Thread Starter 
Quote:
Originally Posted by DuckieHo View Post

Is your fan plug 3-pins or 4-pin?

The fan is 4-pin, the pump is 3-pin.
post #7 of 8
If you leave the fan plugged into the cpu header and set it to lope pwm it will ramp up depending on the cpu temps. Plug the 3 pin pump plug into a 3pin sys plug so it will get full power all the time. Your pics look like the system fan is set to pwm. Whatever system fan your pump i plugged to go to it and change it to disable (or something in that nature). That way it has full volts and power all the time
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post #8 of 8
Quote:
Originally Posted by Dangur View Post

The fan is 4-pin, the pump is 3-pin.


... and what are your CPU Fan modes in the BIOS?
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