Hp compaq 8100 elite sff MOBO supporting pwm

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Xyloriuphon

Xyloriuphon

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Nov 17, 2012
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so, i have a desktop, planning to put the BTX mobo into a different case, anyways, im wanting to put a CPU fan onto the cpu, but, im not sure if the Motherboard supports PWM, is there anyway to tell?

here's the motherboard:

531990-001-505799-001WHITE.jpg
 
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ko888

ko888

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Feb 18, 2009
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If the motherboard has a 4-pin CPU fan header then the fan's speed is controlled by the 4th pin that is the PWM (pulse-width modulation) control signal that provides variable speed control.

If it's just a 3-pin CPU fan header then the fan speed is controlled by varying the voltage level.
 
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