LED install troubles

[Delphineous]

I recently went to radioshack and purchased 4 blue LED lights(5mm) and a pack of 150 ohm resistors and a butt load of 24 guage wire. i soldered everything together and it wont work. I checked my solder points and tryed to reverse the LED polarity and niether worked. I have the positive side of the LED connected to the resistor and the resistor on the red wire on the controller port (5v i believe) and the negative prong of the LED attached to the metal plating on the back of the port. i've made sure there are no shorts and no crossed wires. I dont know what to do if any one has any ideas they would be greatly appreciated. thanks.

 

[Dragonis.Lou]

attach the ground to the black cable on the controller ports. did you check to see if the leds worked before you used them?

 

[Delphineous]

where can i attach a good number of LEDs to one power source? is it possible to attach LEDs to the fan plug for power? is there a site any where that would show me safe places to powere things from? i've never done anything like this before so im kind of at a loss to what to do.

 

[mircisthe]

attach it to the red wire on the hard drive power connector. You can eith splice the with or buy a molex splitter such as this http://secure.llamma.com/catalog/product_info.php?cPath=30&products_id=82
and splice the red wire on the splitter.

 

[punisher84087]

heres a future note to live by: dont ever buy leds from radioshack you can get better cheaper ones from sickmods.net

 

[Delphineous]

oh for sure dude i was just impatient and didnt wanna pay shipping

 

[punisher84087]

oh good
but shiping is way cheap at sickmods like $2 if you're under $9
and i havent spent 9 bucks for any purchase (30 leds for $7)

 

[Jjesterjoker]

100 ohm resisitors, and dont buy from radioshack, the leds are expesive and not bright at all... sickmods.net best place! every led comes with free 100 hom resisitor, and leds are very bright

 

[_-PhArOh-_]

Holy sh*t did he just repeat everything that has already been said? I cannot believe what I just read.

I buy all of my LED's from 123leds.com, 650 LED's and 500 resistors and shipping was only $3.85.