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atx vs at power supply

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estesflyer

Programmer
Dec 19, 2000
284
US
what si the difference?>
 
M/B connector. Voltages. M/Bs they connect to. Maybe power on/off switch. Keep alive power. Ed Fair
efair@atlnet.com

Any advice I give is my best judgement based on my interpretation of the facts you supply.

Help increase my knowledge by providing some feedback, good or bad, on any advice I have given.

 
Difference is in the types of voltage supplied for your system and in the connector. The AT connector is a two-part unit (they plug side-by-side on the motherboard). The easy way to remember how they go on the board is to put the black wires (grounds) on both connectors next to each other in the middle of the wiring group. Each of these connectors will have a single row of blades to make the connection.
ATX supplies multiple voltages to allow the motherboard to supply the proper voltages to a variety of systems. These connectors will be a single piece connector with two lines of square holes that interface to the motherboard. There is only one way these connectors will go on, so you shouldn't have a problem. On some units, one of the holes will be blanked out, allowing you to match the board that way.
Be aware that some boards will offer both connectors to match your legacy power supply. Also, as a general rule, most motherboards beyond a Pentium (P5) will be ATX.

Hope this helps.
 
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