So had a message in trust today from schizo3177 asking about 80cm fans and the potential for adding white LEDs to them. He's going to try it himself but seeing as I had a few minutes spare today and a spare never used fan I'd thought I'd give it a quick whirl.
Anyway here's the fan. Xilence 80cm redwing.
I won't bore you with the procedure again but slight changes were made to fit the 80cm size and reduced LED count. I used two 510 ohm resistors in parallel to give me an overall resistance of 255ohm. 12v - (2.3v x 3) = 5.1v to drop at 20mA = 5.1 / 0.02 = 255 ohm. Perfect.
Here's one side lit up. Decided on 3 per side as 4 might have made it too busy.
And all lit up. A gloomy day enhances the colour.
A bit messy but was rushing to get it done before the wife got home with the kids.
And overall shot. Used a two wire old modem lead for the LED power supply, this would just hook right into my 12v terminal block on the rear side of the motherboard.
Makes me wonder how well 4 per side would look, it'd be a bit of a fiddly job to wire up the LEDs due to the cramped space but might work out well enough.
The LEDs seem to stick out the side of this design a great deal and would cause problems if the fan were to be fitted in a restrictive space. Probably will add insulation tape to the sides to protect it from the case.
Also chopped off the Molex and just joined the fan header wires up to make that neater.
Here's a more shots just for fun.
Comments, questions, advice, just ask.