I've beed getting a lot of emails since I post pics of my Blue LED Baybus asking for help or a more detailed guide! So I've been spending some time doing up this little article for you guys!! Hope you enjoy it!

We overclock, so we want the PC to run cool. So being the extremist that we are, we slap on fans almost everywhere possible in our case. But then it gets a little too noisy due to the fans pushing and pulling air like crazy, even when you're just surfing or doing some office work. Thus came the need to control the noise!

The easiest way to do that is via a switch. You can turn the fans on and off as and when you want it to. So I'm gonna show you how you can construct your own 4-Switch Baybus, with COOL BLUE LEDs as indicators!!

First of all, the parts! You will need 4 SPST switches, 4 Blue LEDs, LED holders and some resistors. The resistors are required as you will need to lower down the 12V line-in from your PSU to the acceptable voltage of the LED. Some other parts include;

Switches Click to enlarge

LEDs, LED holders and resistors Click to enlarge

Face plate
Click to enlarge

The LED specs is as follows;

Voltage = 1.5V, Amp = 0.015 A. Therefore, to calculate resistance needed for a 12V line-in;

Ohm = (Mains Voltage - LED Voltage) / LED Amperes, so;
Ohm = (12 Volts - 1.5 Volts) / 0.015 A
= 700 Ohms or closest they got is 750 Ohms

You will need to mark out the switch and LED positions on the faceplate and use a drill bit to make the mounting holes. You should get something like the picture above.

The wire connectors are required to joint the loose ends of the Baybus and the Fanbus to complete the unit later on. The wires will be crimped onto the connectors using the crimping tool.

The switches I used only have two terminals. This makes it easier to understand and connect. It even has an indicator on one side of the switch to tell you at what position will the switch be "ON" or "OFF". That would give you an idea on how to solder the wires and attach the switches to the faceplate.

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