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what type of capacitor should i get for keeping my laptop fan 100%?

post #1 of 4
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Some guy mentioned he got his asu g73jh laptop fan at constant 100% by using a capacitor but didn't specify what one. Any idea how he did this and what kind of capacitor i should? I can't seem to find the topic and wasn't specified on how he did it.
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post #2 of 4
Quote:
Originally Posted by xXwhygodwhyXx View Post

Some guy mentioned he got his asu g73jh laptop fan at constant 100% by using a capacitor but didn't specify what one. Any idea how he did this and what kind of capacitor i should? I can't seem to find the topic and wasn't specified on how he did it.

I have no idea what the other person did but normally you can adjust the power and fan settings on laptops to run as desired. If your's doesn't offer this option there might be an add on program that will allow this.

I've never heard of using a capacitor which just stores energy... to control a fan??? redface.gif
post #3 of 4
Quote:
Originally Posted by AMD4ME View Post

I have no idea what the other person did but normally you can adjust the power and fan settings on laptops to run as desired. If your's doesn't offer this option there might be an add on program that will allow this.
I've never heard of using a capacitor which just stores energy... to control a fan??? redface.gif

Capacitors store energy in DC, but behave as high pass filters in AC, that could have something to do with it.
 
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post #4 of 4
capacitors are also used in correcting phase change in a high inductive circuit. However this would have nothing to do with a DC fan. Yes capacitors act as a high pass filter, but there is no AC pass the fan connector and you wouldn't want any AC applied to the fan because it would just lower the fan performance assuming AC existed in the first place.

The easiest way to get a fan to spin faster using a capacitor is to build a Greinache voltage doubler circuit. http://en.wikipedia.org/wiki/Voltage_doubler
but alas, that requires AC as well.

my recommendation is to just get a program that allows you to turn your laptop fan to maximum through windows explorer.

I also came across this http://forum.notebookreview.com/asus-gaming-notebook-forum/641007-g73jh-6970m-upgrade-infomation-27.html

doing some browsing it would seem that they are talking about replacing a capacitor on the 6870m video card to increase the video card's stability at higher temperatures. He also said he was going to keep the card at 100% to keep the card cool as possible. assuming this was the information you were reading, the capacitor has nothing to do with making the fan spin faster.
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MENTLEGEN
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