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How to wire 4 fans to 4 sitches for a DIY laptop cooler? Answered

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I have 4 CPU fans and I want to wire each of them to its own switch and then all 4 fans (with the 4 switches) to one master switch. How can I do that?

The fans are 80mm 12v DC and are now connected to an adapter directly.

Any help would be appreciated. Thanks.

Here's a youtube vid of the fans: http://www.youtube.com/watch?v=eGMVReCZ5Os [There's only 3 in the video and pictures but I have added a 4th]

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lemonie (author)2009-08-24

That looks nice. Do you want the master to isolate them all, or just turn them all on?

L

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miknimator (author)lemonie2009-08-24

Thanks. What do you mean by 'isolate'? I want the master to turn them all on. It should basically be that the master opens the power to all 4 fans and their switches, and then I can turn each fan individually on or off with its own switch. So, if the master is off then no power goes to the fans. For example; If the master is turned on and the indi. switches are in the off position the fans will be off until I turn the indi. switch on. I hope that makes sense. hehe. Mike

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lemonie (author)miknimator2009-08-24

That's simple then (grey blobs are switch terminals). The other way is to have them turn on and off individually or turn them all on with a master switch. By isolate I mean "turn all off".

L

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miknimator (author)lemonie2009-08-24

Wow, thanks a lot!

That really helps. =) Now All I need to do is make a wooden panel to house all the switches and and this should be ready by tomorrow. I'll make a video and report back when it all works.

Thanks for the help again. You saved me a lot of time trying to figure this out.

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lemonie (author)miknimator2009-08-24

That's easy, the other way is harder. Your case looks nice - be good to see it finished. L

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lemonie (author)miknimator2009-08-25

Yes - very good - should take the heat out of the sweatiest laptop!. L

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