PDA

View Full Version : Delta fan wires



Silver_Blade
06-11-2008, 08:36 PM
I have a delta brand fan that has four wires
red - positive
black - negative
blue - ?
white - ?
Which one of the 2 above would be the RPM wire?

pctek
07-11-2008, 08:53 AM
Neither.

Poppa John
07-11-2008, 09:25 AM
Cannot help you technically but...Google Delta brand Cooling Fans brings up heaps. PJ

Disregard Pctek's shortness. It is very cold where she is. :)

Terry Porritt
07-11-2008, 09:38 AM
http://www.allpinouts.org/index.php/Motherboard_(CPU)_4_Pin_Fan_Connector


More info: These "Googled" sites give some of the low-down on pulse width modulated fan speed control:

http://www.bit-tech.net/modding/2001/12/03/pwm_fan_controller/1

http://www.formfactors.org/developer%5Cspecs%5C4_Wire_PWM_Spec.pdf

pctek
07-11-2008, 11:46 AM
Disregard Pctek's shortness. It is very cold where she is. :)

You want to control its speed use one of these:
http://www.overclockers.co.nz/product/casemod/controller/index.shtml

Standard fans connected to the MB are only if at all controlled by the BIOS>