Motherboard: AT mode vs ATX mode?

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xTamx420

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Apr 13, 2013
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Hello,

I have a motherboard that has a jumper to set AT mode or ATX mode. What exactly are these modes? The manual isnt very helpful and doesnt seem to be translated very well.

I looked into this a bit and it seems like in AT mode the computer will start when the power supply turns on while in ATX mode the motherboard has more control over the PSU. Is this correct?
 
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Someone Somewhere
Ah. Embedded boards are a bit of a different story.

That said, there are usually options in the BIOS for starting up when first powered on, which gives you the benefit of being able to shut it down nicely.
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ddpruitt

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Jun 4, 2012
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You must be reading the jumper incorrectly. There is no such thing as AT or ATX mode. ATX is a form factor that specifies the layout of the back panel, power connections, mechanical connections and other specs along similar lines. AT and ATX are fundamentally incompatible. Offhand the only thing an AT/ATX mode jumper would be useful for is the power switch, AT switched the PSU while ATX switches the MB. It might be more helpful if you provided the motherboard model and the jumper number so that way we could provide you with more info.
 
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xTamx420

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Apr 13, 2013
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It's a new mini ITX board aimed at embedded systems. The company that makes it is called Jetway.

Normally I would agree that ATX is what I need but in this case the computer will be inside some equipment and needs to power on when it does.
 
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