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Thread ID: 16416 2002-03-08 06:35:00 AT vs ATX Guest (0) Press F1
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38292 2002-03-08 06:35:00 Hi,

Can anybody explain to me the difference between an AT & ATX power supply and mother board & how one can tell the difference.

Thanks.
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38293 2002-03-08 08:02:00 An AT power supply has two seperate connectors (about 5-6 pins each) for the motherboard, both the same size, and usually plug in side by side (it looks like one long connector on the board).

ATX has a single 2x10 connector.

The main difference between AT and ATX is with ATX the power is controlled by the motherboard, so they can turn them selves off/on.
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