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I've been looking for a simple temperature sensor that will turn on the cooling fan when it reaches a certain temperature for the pre-amp. I don't want it to be on all the time. So far I have found nothing but this: Lego Mindstorm Temperature Sensor. http://mindstorms.lego.com/products/temp_sensor.html


I was a huge Lego fan until few years ago. I didn't check out any Lego new toys until today http://www.avsforum.com/ubb/smile.gif Whow, what a great selection they have now. I should have born 20 years after http://www.avsforum.com/ubb/smile.gif Anyway, how do I make this temperature sensor to work with a regular fan?


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You know there is a brutally ugly way of getting fans to switch on when things hot up!


Get yourself a small thermostat, like the ones that control heating or AC. Make sure it's a two wire one that doesn't need power and make sure it goes quite high (100F). Connect this in middle of the power cable for the fan and then adjust it. All the way up should see the fan turn on and all the way down should see the fan turn off. You then need to find a position that suits your PC.


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Simon Wilson
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