Computer Fan

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pgr2002

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I have a computer fan which suddenly started to run slowly. I want the rotor to be rewinded but the Pcb has 3 connections whereas the rotor has 4. Can anyone help me how the winding is done for three connections & what is to be done with the 4th.
 

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4 wire fan has these connections -

**broken link removed**

It might be that if fan still runs its good, you could possibly re-lubricate it and
restore it to working condition. Also the fan may be controlled by analog T sense
on the board, maybe that is thermally coupled to processor and the thermal
coupling needs to be redone. Just some thoughts -

Keep ‘Em Spinning: How To Lubricate PC Fans - Overclockers

Wouldn't you like to be able to use a sleeve bearing fan and not have to worry about your CPU overheating? Read on to learn how to lubricate PC fans to do just that.
www.overclockers.com


Regards, Dana.
 

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