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Adding LED powered by PSU

Last response: in Motherboards
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August 16, 2013 11:44:01 AM

Hi. How can I light a LED light using the PSU? I want to make it power up when my pc opens. Any advice? Thanks.

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a b V Motherboard
August 16, 2013 11:49:10 AM

If it has a 4 pin molex connection that is generally how you would power something like that. Make sure you PSU has some spare ones you have access to.
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August 16, 2013 11:57:00 AM

Yeah it has some of them. So how can I power it, then? And thanks.
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a b V Motherboard
August 16, 2013 11:59:51 AM

positron77 said:
Yeah it has some of them. So how can I power it, then? And thanks.


Can you add a link to what product you are looking at? It should be as simple as plugging it in and when you turn the computer on it will turn on.
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August 16, 2013 12:02:15 PM

burdenbound said:
positron77 said:
Yeah it has some of them. So how can I power it, then? And thanks.


Can you add a link to what product you are looking at? It should be as simple as plugging it in and when you turn the computer on it will turn on.


Lol it is a simple led light.
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a b V Motherboard
August 16, 2013 12:06:41 PM

Oh ok literally a single LED, you are probably better off with the connectors on the motherboard...Google 3 pin fan pinout and connect to ground and +12V. That is if your little LED supports that voltage.
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a b V Motherboard
August 16, 2013 12:07:15 PM

Or are you using this as a replacement for the standard power LED located on most cases?


--Edit--
It looks like most LEDs are 5V in which case the pinout for a 4 pin molex is 12V Ground Ground 5V. You could probably hook it up to the 5V and ground, but might be a little tricky.
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