anyone know the voltage for the led's

[Blacksmith1]

what i want is to to know how you typed all that so fast.
no really, all i want is to use an led as a power on indicator. i want it to last. but i think I figureout a way to do this with no modifications. since the 24 pin connector only has 2 pins in it ATM to tell it turn on/off then the 3.3 volt pin is open. so I'll just connect to that.
I think that should work fine. if not I'll just raid a few more old cases for the lights till i figure it out.

[Dragon]

if it is a blue or white LED it might last for a while the red/green/amber/orange/yellow LEDs not so much. The blue/white/aqua colors require anywhere from 2.6-3 volts to operate, the others are like in the 1.5-2 voltage range I have to wait for my roommate to get off the XCrack 360 to verify this.

[Blacksmith1]

frozen cpu sell them in all colors at 3.3 volts. the copy of "getting started in electronics" from radio shack, that I just pulled off the shelf give a voltage range for each color. none of which is over 3.0 volts. it does however give a formula for getting them to work by using a resistor. and uses 5.0 volts a the referance point in the example.
series resistance = supply volts - led voltage / led current. so what i need to figure out is how many milli amps my led needs as the led current.
the example states 5v - 1.7v /0.01 (10 milliamps) =330 ohms
so with a few extras and some playing around i should be able to get a stable led functioning. i have a bunch of red ones here but they are 3mm, and the mounts i stole from the case are 5mm but i can use them to test with i guess.

[Dragon]

good luck.

[Blacksmith1]

found a better way....
112_0800.jpg as soon as i can get some batteries I'll take a better pic of it. but that TT emblem is my "the power is on" indicator.