Blue LED's On Mobo Headers not enough voltage??

Ziptar

Platinum Member
Jul 7, 2001
2,077
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I bought two Blue LED's for my case from Here. I soldered them up and connected them to my Motherboards Power and HDD headers... No Go (yes I checked the polarity.) I also tried a 3.6 Volt one from Radio Shack. I read a thread on deja about some motherboards only putting out 2.0 volts on the motherboard headers (I don't have a multimeter). I suspect that I have one of those motherboards. It's a Tyan Tiger S1832DL.

The description at casetech says they are 2.0 volts but, i don't thnk they are. They light up when i plug them into the 5V side of the floppy connector and a 9 Volt Battery. How can i get these to work?? or where can I get some 2.0 volt blue LED's???

This isn't the one I bought at the shack but would it work???

 

Chumster

Senior member
Apr 29, 2001
496
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I've been told to purchase the 3mm type. I plan on modding my here shortly - ordered two blue 3mm from the shack.
 

Chumster

Senior member
Apr 29, 2001
496
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I bought the one from Microsoft - hmm.. didn't realize it though. ;) Wonder if I'll need to patch it once it comes in.

Chum
 

FlowerMan

Golden Member
Aug 19, 2001
1,324
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Hmm... if your mobo outputs less than 3V of power to the LEDs, maybe you should find an LED that uses less than 3V? Just a suggestion...