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The Over Current Protection was very popular implemented on ATX 3.3V/5V/12V switching power supply. However, the new
generation CPU uses different voltage that has regulator to transfer 5V to CPU voltage (for example, 2.0V), and makes 5V over
current protection useless. This motherboard is with switching regulator onboard supports CPU over-current protection; in
conjunction with 3.3V/5V/12V power supply provide the full line over-current protection.
ATX
Switching
Power
Supply
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12V (Protected by power supply)
3.3V (Protected by power supply)
5V (Protected by power supply)
Over-Current
Onboard
Power
Regulator
Protection
Circuit
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CPU Core Voltage
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