Gigabit Z97 Gaming mother board: Just ONE PWM header, or FIVE? Help!

[NeilF]

The fans are listed as:-

CPU_FAN

Pin 1 = GND
Pin 2 = +12V
Pin 3 = Sense
Pin 4 = Speed Control​

CPU_OPT

Pin 1 = GND
Pin 2 = +12V/Speed Control
Pin 3 = Sense
Pin 4 = VCC​

SYS_FAN 1, 2 & 3

Pin 1 = GND
Pin 2 = +12V / Speed Control
Pin 3 = Sense
Pin 4 = VCC​

SYS_FAN 4

Pin 1 = GND
Pin 2 = +12V
Pin 3 = NC​

Are CPU_OPT, SYS_FANS 1, 2 & 3 optionally PWM headers too? Are they dual purpose so I can plug a PWM fan in or a regular 3-pin fan in and they will adjust intelligently?

I need TWO PWM fan headers. One for a CPU cooler, and another for a PMW fan hub.




The official page suggests you can plug two PWM fans in using CPU_FAN & CPU_OPT - http://www.gigabyte.com/FileUpload/Features/2/Photo/3997.png

http://www.gigabyte.com/products/product-page.aspx?pid=4959#ov

Official description:-

Fan Headers 1 x CPU (4-pin)
1 x CPU_OPT (4-pin)
4 x SYS (3 x 4-pin, 1 x 3-pin)
​