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Hooking into computer power switch that has a ribbon cable
thecheat:
God bless DealExtreme - is there ANYTHING they don't have?
The JST plugs are probably the right size for those pins, too. You could always jump the button-end if you're keeping the computer in the case. I'm using a Dell laptop and am going to have to solder to the daughterboard to get my power switch wired.
TAG:
--- Quote from: mlcampbe on May 12, 2009, 03:31:38 pm ---I decided to do some testing - whats the worst that could happen, huh :)
I found that there is indeed a set of pins that turns the machine on and off. Now that I have this I just need to find a way to tap into those pins. What is the easiest way to connect 2 wires to these 2 pins without cutting apart the ribbon cable?
--- End quote ---
For the sake of those searching for a solution to similar issues down the line (and/or to save me the trouble of testing it myself when I get to that point ;D), would you mind sharing which pins in your Dell did the trick? Thanks!
mlcampbe:
As I stated before the motherboard has 8 pair of pins as shown below below. For example the set A1 forms a pair of pins.
The only pins that are labeled are numbers 3,4,5,6.
Pins 3 & 4 have "sleep" written under them and pins 5 & 6 have "pwr on"
A B C D E F G H
1 2 3 4 5 6 7 8
In my case shorting together the F6 pair of pins causes the computer to startup or shutdown (if kept shorted together for 5 seconds).
I hope that helps someone down the road.
TAG:
--- Quote from: mlcampbe on May 13, 2009, 09:31:38 am ---I hope that helps someone down the road.
--- End quote ---
Thanks!
severdhed:
another option would be to go to the other end of the cable where the actual PC power switch is...if it just has two wires going to it, tap into it there, if it is mounted on a PCB of some kind, then you would need to solder two wires onto the PCB where the power switch connects.