Howdy all.
I am having issues getting blue LED's to work on my computer. I tried replacing my power on light with a blue one, but it didn't work. I found a few sited using google that indicated blue and white LEDs require more voltage (about +4v), and my LED power supply was only giving about 2v. So, after poking aroung my motherboard, I found +5v coming out of my USB extender port (the place where you plug in the extra 2 USB ports that come with motherboard). So, I took an analog audio cable from my cdrom and plugged it in - I plugged the blue LED into the other end and it worked! Woohoo!
So - I was reading about resistors. What if I want multiple blue lights? Can I take the power from my power supply (+12v) and use a resistor? The table on the back of the LED package was confusing Is there any way to make my hdd light have a blue light? I would have to plug it into the +2v connector from the mobo so it knows when to blink - but there isn't enough power to light the darn LED if I do that!
For the resistors, on the back of the package (the LED package), it doesn't say what wattage to use, it just says 680ohm for 12v DC. I think I am missing something here. Any clarification for my cloudy mind would be greatly appreciated.
I am having issues getting blue LED's to work on my computer. I tried replacing my power on light with a blue one, but it didn't work. I found a few sited using google that indicated blue and white LEDs require more voltage (about +4v), and my LED power supply was only giving about 2v. So, after poking aroung my motherboard, I found +5v coming out of my USB extender port (the place where you plug in the extra 2 USB ports that come with motherboard). So, I took an analog audio cable from my cdrom and plugged it in - I plugged the blue LED into the other end and it worked! Woohoo!
So - I was reading about resistors. What if I want multiple blue lights? Can I take the power from my power supply (+12v) and use a resistor? The table on the back of the LED package was confusing Is there any way to make my hdd light have a blue light? I would have to plug it into the +2v connector from the mobo so it knows when to blink - but there isn't enough power to light the darn LED if I do that!
For the resistors, on the back of the package (the LED package), it doesn't say what wattage to use, it just says 680ohm for 12v DC. I think I am missing something here. Any clarification for my cloudy mind would be greatly appreciated.