davisbaumung Posted March 4, 2006 Report Share Posted March 4, 2006 Ok this is what I want to do. I got some old fans from my school and an old power supply the fans only have 2 wires on them a red on and a black one. I am not sure if the fans even work right now they are 12 volt fans, how can I connected them to a battery or something to see if they work? These are the old fans This is the power supplyThen if they do work I want to connect them to the old power supply and run them off that. On the power supply I have a P4 plug that has red, yellow and 2 black wires (see Pic). I then want to cut off one of the black wires and the yellow one too and use the black and red one on the fan. I would have to cap the yellow and one of black wires right or could I run the other fan off those two. These are the wires off the Fans I know about soldering and such Here is a pic of what it am trying to do: the pink writing say that “this is where it will go†The fans will go there if they can. The green says that I will have to remove that white thing on the end. What will I all need to do this:Soder Solder pencil Wire cutter, strippersSador chisel Sador sucker Plastic wire ends I don’t know what they are called but you twist the 2 wires together and then cap it off with that, That is if I cant use the other 2 wires (yellow and black ) for the other fan Quote Link to post Share on other sites
Honda_Boy Posted March 5, 2006 Report Share Posted March 5, 2006 If you are cutting the wires on the fans a good way to test them is to get a 12V charger for 9V Radio control car batteries. Quote Link to post Share on other sites
nickmart Posted March 5, 2006 Report Share Posted March 5, 2006 (edited) I am not sure if the fans even work right now they are 12 volt fans...I then want to cut off one of the black wires and the yellow one too and use the black and red one on the fan.You want to use the yellow and black wire for the fan, not the red wire. The yellow wire is +12V while the red wire is +5V. And don't think connecting the left over wires together is a good idea. I think that would create a bad short. Edited March 5, 2006 by nickmart Quote Link to post Share on other sites
davisbaumung Posted March 5, 2006 Author Report Share Posted March 5, 2006 Well after going on to the chat and disuccusing this I have decided to scrap the project and just get ones that conncet to the power supply. Davis Quote Link to post Share on other sites
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