[nlug] Re: power rating of mobo drive signal led connector

2009-06-17 Thread Alex Smith (K4RNT) 

I've always loved the possibility of a system alert on a server
triggering a "Red Alert" klaxon and flashing light, ala Star Trek
VI... :)

On Wed, Jun 17, 2009 at 8:25 AM, Andrew Farnsworth wrote:
> On Wed, Jun 17, 2009 at 9:18 AM, Howard White  wrote:
>>
>> ./aal wrote:
>> > (I am having visions of a stuffed monkey crashing cymbals together on
>> > top of my case, most annoyingly useless mod ever?!?!)
>>
>> ya know, this would be really funny, for about three minutes...
>>
>> Howard
>
> Exactly the kind of thing you see at trade shows that grab your attention.
> You would never want it on your desk, but it is cool to see at the show.
>
> How about something like an electric train who's speed is controlled by
> drive access?

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- Alex Smith (K4RNT)
- Murfreesboro/Nashville, Tennessee USA

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[nlug] Re: power rating of mobo drive signal led connector

2009-06-17 Thread ./aal 
your buffer is larger than mine
I was thinking it would be funny till the 3rd drive access

On Wed, Jun 17, 2009 at 8:18 AM, Howard White  wrote:

>
> ./aal wrote:
> > (I am having visions of a stuffed monkey crashing cymbals together on
> > top of my case, most annoyingly useless mod ever?!?!)
>
> ya know, this would be really funny, for about three minutes...
>
> Howard
>
> >
>


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[nlug] Re: power rating of mobo drive signal led connector

2009-06-17 Thread Andrew Farnsworth 
On Wed, Jun 17, 2009 at 9:18 AM, Howard White  wrote:

>
> ./aal wrote:
> > (I am having visions of a stuffed monkey crashing cymbals together on
> > top of my case, most annoyingly useless mod ever?!?!)
>
> ya know, this would be really funny, for about three minutes...
>
> Howard
>

Exactly the kind of thing you see at trade shows that grab your attention.
You would never want it on your desk, but it is cool to see at the show.

How about something like an electric train who's speed is controlled by
drive access?

Andy

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[nlug] Re: power rating of mobo drive signal led connector

2009-06-17 Thread JMJ 

Howard White wrote:
> ./aal wrote:
>> (I am having visions of a stuffed monkey crashing cymbals together on
>> top of my case, most annoyingly useless mod ever?!?!)
> 
> ya know, this would be really funny, for about three minutes...

But it would be pretty awesome as some sort of emergency alert.  :-)

JMJ

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[nlug] Re: power rating of mobo drive signal led connector

2009-06-17 Thread Howard White 

./aal wrote:
> (I am having visions of a stuffed monkey crashing cymbals together on
> top of my case, most annoyingly useless mod ever?!?!)

ya know, this would be really funny, for about three minutes...

Howard

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[nlug] Re: power rating of mobo drive signal led connector

2009-06-17 Thread ./aal 

On Wed, Jun 17, 2009 at 8:00 AM, Curt Lundgren wrote:
>
> In general, the "HDD" and "Power" LEDs are bare LEDs without current
> limiting resistors, meaning that the necessary current limiting will
> be provided by a series resistor on the mobo.
>
> Your case LEDs, on the other hand, being designed to be powered by a
> power supply connector (I'm guessing it's going to be the 5 volt half
> of a Molex drive connector), will have their own current limiting
> resistor[s].
>
> If you connect the "art" LEDs to the HDD drive connector it should
> cause no damage, but you may be quite disappointed in the level of
> brightness you achieve.  If you want to play around with some kind of
> transistor drive circuit you could get full brightness, but that would
> involve knowing whether the drive to the HDD LED is "active high" or
> "active low" and would also involve having some knowledge on how to
> design a simple transistor drive circuit.
>
> Curt

very true, or I could use an opamp/comparator, or drive a periph based
on the out
(I am having visions of a stuffed monkey crashing cymbals together on
top of my case, most annoyingly useless mod ever?!?!)


in any event, you have clarified my thoughts on damaging things I cant
replace right now
I will start investigating, thanks gigs Curt!!


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choose to scoop.
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[nlug] Re: power rating of mobo drive signal led connector

2009-06-17 Thread Curt Lundgren 

In general, the "HDD" and "Power" LEDs are bare LEDs without current
limiting resistors, meaning that the necessary current limiting will
be provided by a series resistor on the mobo.

Your case LEDs, on the other hand, being designed to be powered by a
power supply connector (I'm guessing it's going to be the 5 volt half
of a Molex drive connector), will have their own current limiting
resistor[s].

If you connect the "art" LEDs to the HDD drive connector it should
cause no damage, but you may be quite disappointed in the level of
brightness you achieve.  If you want to play around with some kind of
transistor drive circuit you could get full brightness, but that would
involve knowing whether the drive to the HDD LED is "active high" or
"active low" and would also involve having some knowledge on how to
design a simple transistor drive circuit.

Curt

On Jun 16, 4:56 pm, "./aal"  wrote:
> On Tue, Jun 16, 2009 at 4:33 PM, Chris
>
> McQuistion wrote:
> > You can swap the power LED and HD LED on a motherboard with no ill effects
> > (I've miss-plugged them, plenty of times) so if you just want to know if you
> > can plug the power LED into the HD LED header, then the quick answer is yes.
> > Chris
>
> actually I was interested in powering the "art" leds in the case from
> it, so the current could be significantly different
> (not to mention the V if the leds are in series, but I can change that)
>
> --
> -- NOT sent from an iphone,blackberry,Nokia, or any handheld. --
>
> I'm a PC(x86 AND ppc)
> AND I RUN LINUX!!!
> Linux is like ice cream. It comes in many flavors and everyone has
> their favorite, but we all get the same smile regardless of which we
> choose to scoop.
> -
> George Bernard Shaw  - "Reading made Don Quixote a gentleman.
> Believing what he read made him mad." 
> -http://www.quotationspage.com/quote/30694.html
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[nlug] Re: power rating of mobo drive signal led connector

2009-06-16 Thread ./aal 

On Tue, Jun 16, 2009 at 4:33 PM, Chris
McQuistion wrote:
> You can swap the power LED and HD LED on a motherboard with no ill effects
> (I've miss-plugged them, plenty of times) so if you just want to know if you
> can plug the power LED into the HD LED header, then the quick answer is yes.
> Chris
>

actually I was interested in powering the "art" leds in the case from
it, so the current could be significantly different
(not to mention the V if the leds are in series, but I can change that)




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AND I RUN LINUX!!!
Linux is like ice cream. It comes in many flavors and everyone has
their favorite, but we all get the same smile regardless of which we
choose to scoop.
-
George Bernard Shaw  - "Reading made Don Quixote a gentleman.
Believing what he read made him mad." -
http://www.quotationspage.com/quote/30694.html

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[nlug] Re: power rating of mobo drive signal led connector

2009-06-16 Thread Chris McQuistion 
You can swap the power LED and HD LED on a motherboard with no ill effects
(I've miss-plugged them, plenty of times) so if you just want to know if you
can plug the power LED into the HD LED header, then the quick answer is yes.
Chris


On Tue, Jun 16, 2009 at 4:06 PM, ./aal  wrote:

> thanks, but what is the power rating(watts)
> or maxCurrent
>
> On Tue, Jun 16, 2009 at 3:43 PM, Chris McQuistion  > wrote:
>
>> I just threw my multimeter on the power led connector on my motherboard
>> and it measured 5V DC.
>> Chris
>>
>>
>> On Tue, Jun 16, 2009 at 3:21 PM, ./aal  wrote:
>>
>>>
>>> any idea where one might find that?
>>> or if there is a standard level they all meet
>>>
>>>
>>> I have  a case with no hdd led on it, but there is a multi-led circuit
>>> in the lid that usually feeds from a power connector tap and I can
>>> change the connector to mate it with the hdled on the mobo but dont
>>> yet know if I should. I am not a fan of freeing the magic smoke from
>>> my desktop.
>>>
>>>
>>> --
>>> -- NOT sent from an iphone,blackberry,Nokia, or any handheld. --
>>>
>>> I'm a PC(x86 AND ppc)
>>> AND I RUN LINUX!!!
>>> Linux is like ice cream. It comes in many flavors and everyone has
>>> their favorite, but we all get the same smile regardless of which we
>>> choose to scoop.
>>> -
>>> Samuel Goldwyn  - "You've got to take the bitter with the sour." -
>>> http://www.quotationspage.com/quote/23534.html
>>>
>>>
>>>
>>
>>
>>
>
>
> --
> -- NOT sent from an iphone,blackberry,Nokia, or any handheld. --
>
> I'm a PC(x86 AND ppc)
> AND I RUN LINUX!!!
> Linux is like ice cream. It comes in many flavors and everyone has their
> favorite, but we all get the same smile regardless of which we choose to
> scoop.
> -
> Unknown   - "It's hard to
> be nostalgic when you can't remember anything."
> >
>

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[nlug] Re: power rating of mobo drive signal led connector

2009-06-16 Thread ./aal 
thanks, but what is the power rating(watts)
or maxCurrent

On Tue, Jun 16, 2009 at 3:43 PM, Chris McQuistion
wrote:

> I just threw my multimeter on the power led connector on my motherboard and
> it measured 5V DC.
> Chris
>
>
> On Tue, Jun 16, 2009 at 3:21 PM, ./aal  wrote:
>
>>
>> any idea where one might find that?
>> or if there is a standard level they all meet
>>
>>
>> I have  a case with no hdd led on it, but there is a multi-led circuit
>> in the lid that usually feeds from a power connector tap and I can
>> change the connector to mate it with the hdled on the mobo but dont
>> yet know if I should. I am not a fan of freeing the magic smoke from
>> my desktop.
>>
>>
>> --
>> -- NOT sent from an iphone,blackberry,Nokia, or any handheld. --
>>
>> I'm a PC(x86 AND ppc)
>> AND I RUN LINUX!!!
>> Linux is like ice cream. It comes in many flavors and everyone has
>> their favorite, but we all get the same smile regardless of which we
>> choose to scoop.
>> -
>> Samuel Goldwyn  - "You've got to take the bitter with the sour." -
>> http://www.quotationspage.com/quote/23534.html
>>
>>
>>
>
> >
>


-- 
-- NOT sent from an iphone,blackberry,Nokia, or any handheld. --

I'm a PC(x86 AND ppc)
AND I RUN LINUX!!!
Linux is like ice cream. It comes in many flavors and everyone has their
favorite, but we all get the same smile regardless of which we choose to
scoop.
-
Unknown   - "It's hard to be
nostalgic when you can't remember anything."

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[nlug] Re: power rating of mobo drive signal led connector

2009-06-16 Thread Chris McQuistion 
I just threw my multimeter on the power led connector on my motherboard and
it measured 5V DC.
Chris


On Tue, Jun 16, 2009 at 3:21 PM, ./aal  wrote:

>
> any idea where one might find that?
> or if there is a standard level they all meet
>
>
> I have  a case with no hdd led on it, but there is a multi-led circuit
> in the lid that usually feeds from a power connector tap and I can
> change the connector to mate it with the hdled on the mobo but dont
> yet know if I should. I am not a fan of freeing the magic smoke from
> my desktop.
>
>
> --
> -- NOT sent from an iphone,blackberry,Nokia, or any handheld. --
>
> I'm a PC(x86 AND ppc)
> AND I RUN LINUX!!!
> Linux is like ice cream. It comes in many flavors and everyone has
> their favorite, but we all get the same smile regardless of which we
> choose to scoop.
> -
> Samuel Goldwyn  - "You've got to take the bitter with the sour." -
> http://www.quotationspage.com/quote/23534.html
>
> >
>

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