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Can a switch replace my computer's power button?
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SavannahLion:

--- Quote from: Zebidee on December 01, 2007, 10:12:51 pm ---
--- Quote from: Peale on December 01, 2007, 09:03:46 pm ---It doesn't work with them all.

--- End quote ---
Yeah, if you have a non-ATX it's good to have some sneaky options like Peale's cap-trick up your sleeve ;)

--- End quote ---

That cap trick is specifically for ATX boards, not non-ATX boards. For instance, older AT power supplies use a much more dangerous 120v switch, not a soft-switch.
Zebidee:

--- Quote from: SavannahLion on December 01, 2007, 10:34:22 pm ---That cap trick is specifically for ATX boards, not non-ATX boards. For instance, older AT power supplies use a much more dangerous 120v switch, not a soft-switch.

--- End quote ---

 :dunno

In that case, I really struggle to understand WHY you would need to use the cap-trick, as every standard ATX power supply connector provides a PSON (5v) at either pin 14 or pin 16 (for 24 pin ATX types).  Every ATX PC has this feature, as far as I am aware.

This will work like an on/off switch, not like a momentary on/off button that only SOME ATX MBs support. 

Peale's cap-trick is clever, but it only works on the MB switch on an ATX PC.  However, one could save the trouble and simply tap into the ATX power connector.
SirPeale:
Zebidee: because of what I already stated - this does not work with all motherboards!
Zebidee:
Well, if I ever find an ATX motherboard that isn't to ATX standard then I'll know what to do!

Peale, I'm not sure if you're talking about the same MB connection that I am.  Pls correct me if I am wrong, I'm not looking for an argument.

What you are doing is controlled by the MB connections to the normal power switch at the front of the PC - the PSON switch you show in your pics on your website is connected to the rest of those "front panel" connections.  The PSON I am talking about is different to that - it is where the ATX Power supply itself connects to the MB, and it is in a different place on the MB.  In is more related to the PS itself than the MB.  In function, it is more analogous to the hard on/off switch at the back of the power supply.
bfauska:
Peale's solution should allow a software driven shut-down, while I don't think that Zebide's would.  If the both work on most ATX motherboards I would say Peale's is the one I'd try first.
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