BADFlSH
07-28-2000, 11:21 PM
Ok, I know a lot of you guys are overclocking and you probably have a ton of fans running. All those fans can be pretty loud and aren’t really necessary if your computer isn’t under a heavy load, like when its sleeping. Here is a description of how I put variable speed fan switches in my computer. This wont be very detailed because I did it awhile ago so I don’t remember part numbers anymore but it should give you an idea how to go about doing it yourself if you are so inclined.
http://www.members.home.net/badflsh/S_comp1.JPG
Ok, here is a front view of my case, which as you can see, has two knobs (I only have two fans that I want to adjust the speed on). These can be used to choose one of six speeds for each fan. Also there are two small jacks. Those are so that I can plug a mic and headphones into my comp without having dig through the mess of wires in the back. More on that in a minute.
http://www.members.home.net/badflsh/S_comp4.JPG
This is a shot of the inside of the front panel of my case. Sort of looks like a bomb if you ask me. Anyway, those rectangular things at the bottom are the resistors. The ones I used were 18 ohms each but you may end up using different values. The reason they are so big is because they have to dissipate heat. I am not sure what wattage these were but you should just hook your system up on a workbench and let it run for a while to see how hot it gets. These stay pretty cool because of there size.
There are eight resistors total, four for each switch. The resistors are soldered together in series and each node is connected to the switch.
http://www.members.home.net/badflsh/schm.jpg
Here is a simple schematic of the switch and resistors. Notice that in position 1 all of the resistors are bypassed. In this position the fan runs at full speed. In position 6 nothing is connected. When in this position the fan is off.
As far as the jacks for the mic and headphones all you have to do is go to radio shack and get both male and female versions of these mini jacks. Put them in the front of the case, next connect the female plugs to the male plugs and run them through an empty slot in the back of the case, then just plug them into your sound card. You can also get an adapter as I have in the picture below so that you can have your computer plugged into a set of speakers behind your case but also plug headphones in the front for when the speakers are turned off.
http://www.members.home.net/badflsh/S_comp2.JPG
And there is the back of my case with the wires for the jacks plugged in.
I hope this helps someone. If you need more info let me know and I will try to get more detailed.
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<*{{{{<( ßÅÐfϧH )>}}}}*>
[This message has been edited by BADFlSH (edited 07-28-2000).]
[This message has been edited by BADFlSH (edited 07-28-2000).]
[This message has been edited by BADFlSH (edited 07-28-2000).]
[This message has been edited by BADFlSH (edited 07-28-2000).]
[This message has been edited by BADFlSH (edited 07-28-2000).]
http://www.members.home.net/badflsh/S_comp1.JPG
Ok, here is a front view of my case, which as you can see, has two knobs (I only have two fans that I want to adjust the speed on). These can be used to choose one of six speeds for each fan. Also there are two small jacks. Those are so that I can plug a mic and headphones into my comp without having dig through the mess of wires in the back. More on that in a minute.
http://www.members.home.net/badflsh/S_comp4.JPG
This is a shot of the inside of the front panel of my case. Sort of looks like a bomb if you ask me. Anyway, those rectangular things at the bottom are the resistors. The ones I used were 18 ohms each but you may end up using different values. The reason they are so big is because they have to dissipate heat. I am not sure what wattage these were but you should just hook your system up on a workbench and let it run for a while to see how hot it gets. These stay pretty cool because of there size.
There are eight resistors total, four for each switch. The resistors are soldered together in series and each node is connected to the switch.
http://www.members.home.net/badflsh/schm.jpg
Here is a simple schematic of the switch and resistors. Notice that in position 1 all of the resistors are bypassed. In this position the fan runs at full speed. In position 6 nothing is connected. When in this position the fan is off.
As far as the jacks for the mic and headphones all you have to do is go to radio shack and get both male and female versions of these mini jacks. Put them in the front of the case, next connect the female plugs to the male plugs and run them through an empty slot in the back of the case, then just plug them into your sound card. You can also get an adapter as I have in the picture below so that you can have your computer plugged into a set of speakers behind your case but also plug headphones in the front for when the speakers are turned off.
http://www.members.home.net/badflsh/S_comp2.JPG
And there is the back of my case with the wires for the jacks plugged in.
I hope this helps someone. If you need more info let me know and I will try to get more detailed.
------------------
<*{{{{<( ßÅÐfϧH )>}}}}*>
[This message has been edited by BADFlSH (edited 07-28-2000).]
[This message has been edited by BADFlSH (edited 07-28-2000).]
[This message has been edited by BADFlSH (edited 07-28-2000).]
[This message has been edited by BADFlSH (edited 07-28-2000).]
[This message has been edited by BADFlSH (edited 07-28-2000).]