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 Post subject: WARNING!
PostPosted: 24.12.2005 19:38 
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Junior Modder
Junior Modder

Joined: 24.12.2005 19:31
Posts: 6
I will check if i understood correct:
longer leg to red and shorter with resistor* to black wire?
*How can i know which resistor i must use?

if i would do anything wrong is it possible to damage some parts of computer???
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Last edited by ultimate on 25.12.2005 14:56, edited 1 time in total.

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 Post subject:
PostPosted: 24.12.2005 19:40 
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Junior Modder
Junior Modder

Joined: 24.12.2005 19:31
Posts: 6
how can i know how much V i'm getting from a line???
and which connection i have in this: http://www.metku.net/index.html?sect=vi ... /index_eng


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 Post subject:
PostPosted: 24.12.2005 20:23 
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Ultra Modder
Ultra Modder
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Joined: 07.12.2004 19:45
Posts: 2537
Location: Finland CPU: i5-750 RAM: 4Gt, HDD: 2000 Gt, GFX: RADEON HD 5770, D: 22"+44"
ultimate wrote:
how can i know how much V i'm getting from a line???

Red + Black = 5v, Yellow + Black = 12v

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 Post subject:
PostPosted: 24.12.2005 20:44 
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Junior Modder
Junior Modder

Joined: 24.12.2005 19:31
Posts: 6
Opelrun wrote:
Red + Black = 5v, Yellow + Black = 12v


and how did you know that???
sorry for these n00b questions, but i have no idea where can i find info for this and for other wires/parts of computer to know how to add leds there!


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 Post subject: how does he know.?
PostPosted: 25.12.2005 08:31 
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Junior Modder
Junior Modder

Joined: 12.11.2005 07:00
Posts: 3
Well in a computer (from the PSU) the yellow wires carry 12V. the red wires carry 5V. the black wires are just ground wires that have 0V, but are needed to complete the circuit. it doesn't matter which side of the LED (on which wire) you put the resistor, it'll work on either side. i usually put mine on teh positive lead, the wire with voltage (red or yellow). you can calculate the resistor you need by using the LED calculator in the modding section which you link to. use the single LED option, the first one, and put 5V as the supply volts. NExt consult your LED packaging for the typical voltage of the LED, it will also tell you the typical and max current value (in milliAmps) when you have the values entered click calculate. they you're done, except for soldering. Good luck, i hope this helped! :)


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 Post subject:
PostPosted: 28.12.2005 04:31 
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Ultra Modder
Ultra Modder

Joined: 09.06.2003 08:30
Posts: 1592
Location: Orlando, FL, USA
Opelrun wrote:
ultimate wrote:
how can i know how much V i'm getting from a line???

Red + Black = 5v, Yellow + Black = 12v


Red+Yellow=7v

the best way to describe the wires is by saying if theyre + or - voltage. cuz there are a few -12v and -5v lines on the powersupply. chek out this site.

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