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Processor fan slow

My processor fan run slow 800rpm even the processor become hot fan still run 800rpm.I disconnect the number 4 pin .then the fan run 2300rpm.my motherboard is dp965lt.core2.memory 800mhz

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There is usually something in the BIOS settings that control the speed of the fan at certain temperatures. check those. Set it on auto if you can

Posted on Jun 05, 2008

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My Dell Computer Processor fan runs too fast continusly, it wont slow down, pls help me.


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If you like my solution, please vote for me,

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Been using the same power supply?

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Motherboard is broke downs. not responding even beeps. mostly we dont see anything suspecious when we look at the mainboard. we are talking about micrro technology.

take the service to get assist.

have a good evening.

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1 Answer

Ventilator of the microprocessor


Most modern motherboards include temperature sensors that can speed up or slow down the CPU fan depending on how hot the processor is. If its noisier than it was originally it could be: -inefficient cooling caused by dust accumulating in the heatsink under the fan. -could be heat buildup in the case itself causing the processor to run hot. -could just be noisier because the bearing in the CPU fan is wearing out. -Make sure the CPU fan power cable is plugged into the proper socket. If it?s not the motherboard cannot control the speed. Let us know if you have any other questions.

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