Cooling Fan Problems

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RagingRabbits

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Nov 27, 2013
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I bought a new pc cooling fan it has 4 pins whenever i plug 4 pins in it dosen't work , but when i plug 3 pins in it works but its too loud I somehow cannot control the fan speed in the bios
 


I guess when you use 4 pins the fan is in PWM mode which can be controlled manually or automatically by adjusting by the temperature. Does it start spinning at some time when with 4 pins?
 
it may be because your motherboard turns off the case fans when the cpu temperature is low. what is your motherboard? look for fan profile settings in your bios and if you want fan running all time set it to manual or off
 
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