Help needed!! PWM Header (sysfan1) running at full speed :@

[kasblade]

hi all i am currently trying to run 3 pwm fans off of one header using a sata power splitter, this one

i am running 2 cooler master jet flows on my CPU header witch works perfectly
but when i try using said splitter on (sysfan1) all of the fans run constant full speed, so as a temporary measure to kill noise im under volting each fan to 1000 rpm

the problem began when i accidentally shorted 2 pins on the header trying to check the voltage, i cant remember witch 2 pins it was but it made a spark and shut the system down (system is running fine now) but still unable to control the fans

my mobo is MSIA88XM-E45
this one
http://content.hwigroup.net/images/products/xl/202993/msi_a88xme45.jpg

if anyone could shed some light or a possible fix i would greatly appreciate it
any questions feel free to ask
thanks again

 

[kasblade]

@snips86x

thanks for quick reply was yours doing the same running full speed. and that's all good but i only have 2 pwm headers on my mobo so i got 2 fans running on my CPU header and now the second header aint running pwm at all