CPU Fan Not spinning

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7 Nov 2006
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So i've purchased some bits off the MM and put them all together. I've turned the system on and it powers up with the lights on the motherboard turning on and also the case fans turn on but the Stock intel cpu fan is not spinning ( Turned it off within a few seconds ) I've tried connecting it to another fan power connection on the mobo but it still does not work. What could be causing this? PSU? Motherboard or simply a dodgy heatsink fan?
 
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Check the mobo settings for the CPU fan is set to AUTO as PWM will not always spin the fan up until the CPU gets hot. 34 for me.

You could always try that fan on another header.
 
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