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Anyone have an idea on cpu fan wiring. My motherboard has a 5 pin connector and my new fan has 4 pins. I think they are yellow, black, blue and yellow. As long as I can get the fan going at a reasonable rate I can test the pc. The fan is a 12volt unit. Can I run it off the auxilary power supply?
 

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You can purchase an adaptor from a puter store that would allow you to hook it up to an exixting power lead with out connecting it to the motherboard.

Good luck.
 

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It depends on your MB. Many new MB's have a fan monitor that will shut them down after a few seconds of not sensing the fan running. OTOH, I've never seen a MB with a 5 pin fan plug, most are three pins, GND, +12V, and TACH. Perhaps you should be more specific about the name/model of MB...
 
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