1/2) ATX_12V/ATX (2x2 12V Power Connector and 2x12 Main Power Connector)
With the use of the power connector, the power supply can supply enough stable power to all the components on the motherboard. Before connecting the power connector, first make sure the power supply is turned off and all devices are properly installed. The power connector possesses a foolproof design. Connect the power supply cable to the power connector in the correct orientation. The 12V power connector mainly supplies power to the CPU. If the 12V power connector is not connected, the computer will not start.
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| ATX_12V : |
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1 | 3 |
| Pin No. | Definition |
2 | 4 |
| 1 | GND |
| 2 | GND | ||
ATX_12V |
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| 3 | +12V | |
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| 4 | +12V |
10 | 20 | ATX : |
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| Pin No. | Definition | Pin No. | Definition |
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| 1 | 3.3V | 11 | 3.3V |
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| 2 | 3.3V | 12 | |
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| 3 | GND | 13 | GND |
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| 4 | +5V | 14 | PS_ON(soft On/Off) |
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| 5 | GND | 15 | GND |
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| 6 | +5V | 16 | GND |
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| 7 | GND | 17 | GND |
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| 8 | Power Good | 18 | |
1 | 11 |
| 9 | 5V SB(stand by +5V) | 19 | +5V |
| 10 | +12V | 20 | +5V | ||
ATX
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