Color Changing Digital PC Fan Controller

Step 10 Attach a pin connector to the fan LED's

The fan has 4 groups of 4 LED wires coming off of it.  Starting at the right on the PCB connector, it goes:

Ground, Red1, Green1, Blue1, Ground, Red2, Green2, Blue2, Ground, Red3, Green3, Blue3, Ground, Red4, Green4, Blue4

Take a 16-pin section of the rectangular connector and solder the LED's in that order (you do remember what order the LED's are in, right ;-) )

When you're done soldering it, use hot glue to glue a protective form around the soldered pins, there's a lot of tiny wires and hot glue will keep them from pulling apart.  It's only useful if you glue past the insulation break or the exposed metal will snap.  Then wrap the whole thing in tape to make sure.  Finish by grouping the fan wires with tape segments from the plug all the way to the fan until it is one single cord.  Tape the fan's power cord to this as well.  When it's done, it should look a lot like the picture below, and plugging it in (if you programmed the AVR in step 6) should cause all the lights to light up.  If there's a missing color, you know where to look (I had 2 LED's that didn't light up, turns out there were tiny breaks on their PCB traces, bridged them and it works great).