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Front panel LEDs, burnt out? Yes or no?

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  • Homebuilt
  • Front Panel
  • LED Monitor
  • Systems
Last response: in Systems
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April 28, 2005 7:11:23 PM

Archived from groups: alt.comp.hardware.pc-homebuilt (More info?)

I have two case in which the LED won't work no matter how they are plugged
into the motherboard. Can you burn out the Power and HDD LED simply by
reversing positive and negative?

Thanks

James

More about : front panel leds burnt

Anonymous
a b B Homebuilt system
April 28, 2005 10:34:27 PM

Archived from groups: alt.comp.hardware.pc-homebuilt (More info?)

"James" <jwr18@comcast.net> writes:
>I have two case in which the LED won't work no matter how they are plugged
>into the motherboard. Can you burn out the Power and HDD LED simply by
>reversing positive and negative?

You could test the led without having any connection to the board.
That would give you some added confidence about where the problem
might be. You could use 3 volts from an available flashlight and
a resistor of a few hundred or a thousand ohms. Put the led, the
batteries and the resistor in series (in a loop with one to the
next to the next) and then see if the led lights. If not reverse
the battery terminals and try again. If that doesn't work then
try this with a known working led, to confirm you method.
April 29, 2005 12:07:43 AM

Archived from groups: alt.comp.hardware.pc-homebuilt (More info?)

Thanks for the info. I just ordered a replacement. It cost me $8.

James

"Don Taylor From:" <dont@rdrop.com> wrote in message
news:a-CdnUf4b66e7uzfRVn-3w@scnresearch.com...
> "James" <jwr18@comcast.net> writes:
>>I have two case in which the LED won't work no matter how they are plugged
>>into the motherboard. Can you burn out the Power and HDD LED simply by
>>reversing positive and negative?
>
> You could test the led without having any connection to the board.
> That would give you some added confidence about where the problem
> might be. You could use 3 volts from an available flashlight and
> a resistor of a few hundred or a thousand ohms. Put the led, the
> batteries and the resistor in series (in a loop with one to the
> next to the next) and then see if the led lights. If not reverse
> the battery terminals and try again. If that doesn't work then
> try this with a known working led, to confirm you method.
Anonymous
a b B Homebuilt system
April 29, 2005 5:10:43 AM

Archived from groups: alt.comp.hardware.pc-homebuilt (More info?)

It's unlikely you burnt out the LEDs. LEDs are hard to burn out and
dont fail too often. Confirm your connected to the correct motherboard
pins. My mobo actually has two separate sets of pins for the Power LED,
one for a two pin config and one for a three pin config. Do you have
the mobo manual still?

James Wrote:
> I have two case in which the LED won't work no matter how they are
> plugged
> into the motherboard. Can you burn out the Power and HDD LED simply by
> reversing positive and negative?
>
> Thanks
>
> James


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