My PWM don't work after install new cooler...

Hi...
I have MSI P55-GD65 and i have a problem... My PWM don't work anymore  
I had a Intel stock cooler and PWM on this cooler work nice (when is idle speed is about 2000 RPM, on load above 2500 and up RPM), but i buy Cooler Master Hyper TX3 (with 4 pins and PWM control) and now speed on this cooler is 2900 RPM (100%) and don't go up or down depend of temps.
Just on start when i boot windows speed is nice i guest 2000 RPM (i hear that) but only 5-6 secounds (until boot logo appers) and then go full 100% 2900 RPM...
I don't change anything in BIOS after installation of this cooler (Hyper TX3). When i see that PWM don't work correctly i go in BIOS and try to load optimal settings, but again don't work...
Also "smart Fan Control" was disable when i using Intel stock cooler and also this option is disable now...
Please if somebady know, help me.... Im desperate  

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But PWM and Smart Control Speed is not same, right?
The SmartFan control is the automatic regulation of the PWM signal.  If it is disabled, there is no regulation.  It is that simple.  Set the SmartFan Target Temperature to 55°C and see what happens.
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Ok, but with intel stock cooler this option (smart control speed) was disable and my fan speed spin dependly of votage or temps.
Sorry, but I doubt that what you say is true. 
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smart control speed is option for change fan speed dependly of temps
Yes, and?  That is what a fan is for: keep the processor cool.  If it is cool enough, the fan slows down.  As soon as the temperature is increasing, the fan speed will increase as well until it cools down again.  That is how it is supposed to work.
Quote
PWM is depend of voltage, this is my problem....
PWM is a way to regulate the fan speed (pulse-width modulation).  The PWM regulation method as such has not much to do with voltages but with the pulse width of the regulating signal. 
What you are referring to is the event that triggers the PWM logic to speed up or slow down the fan.  Tying it to "voltage" (what voltage?) would not make any sense whatsoever.  Of course, a higher CPU voltage will theoretically result in higher temperatures.  However, the BIOS does not know (or care) what kind of heatsink you have installed or how effective it is.  The best way for an effective automatic an regulation is to make it dependend on CPU temperature alone (to treat the symptoms of raised voltage: heat) and that is exactly how it works on your board.

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