Originally Posted by starik
My case has a window. I want the inside to have blue light cast on it. Preferably the source(s) of the light would be obscured - indirect lighting. Maybe a tube of LEDs inside the cover encircling the window just out of sight. I wrote "(?!!!)" to indicate my shock that anyone would install or even manufacture a piece of hardware specifically designed for a computer that has a good chance of destroying the motherboard.
Just replace your fans with blue LED fans, that will give your case a blue glow. Might be able to get better fans or a better airflow set-up in the process as well. Or, like OS-Wiz suggested, get lights that connect directly to your PSU, so they can't risk your MOBO in any way. I've never heard of lights shorting out a MOBO though.