dell laptop fan header questions and pssoble mod.

memphis_212

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Aug 18, 2013
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Jammed a Dell laptop mobo into a PS1 for fun really, screen had cracked off the case and I was going to semi mod it into a ps1.


I need help on two things,

One the power switch is in a very poor spot, was wondering if i could re-route it. It is a circle push button switch with four pins soldered to the board. Two top two bottom. Possible I could just desolder this and branch it with four thin wires? I don't see why not.

Two is a fan problem, it is a three pin connecting header from mobo to heatsink fins I was wondering if I would pop on a corsair 12v fan into this or if it would blow the header.....

more detailed explanation..... say the header supplys ... 5v... If I placed the 12v fan onto this with a splice would the fan try to pull the 12v and blow the header ... or would it stop itself/run on the 5v instead?



Hope i cleared my questions up a bit.


Also I pulled the mobo and before i could recall to write down the model for the dell I left and trashed the case... does the mobo have a spot to show model? I
 
Solution
As long as you do it wire for wire your switch should work fine.

If you supply 5V to a 12V fan it will just spin slower, or not at all. (A fun trick if you want a low RPM fan) What you have to worry about is the power draw, since it was a laptop it is probably expecting a very low wattage fan, a big 120mm with a high RPM would probably draw too much current and you risk burning out something.

Most motherboards will have the model screen printed on there somewhere, just have to search for it.

Eximo

Titan
Ambassador
As long as you do it wire for wire your switch should work fine.

If you supply 5V to a 12V fan it will just spin slower, or not at all. (A fun trick if you want a low RPM fan) What you have to worry about is the power draw, since it was a laptop it is probably expecting a very low wattage fan, a big 120mm with a high RPM would probably draw too much current and you risk burning out something.

Most motherboards will have the model screen printed on there somewhere, just have to search for it.
 
Solution