ATX12V Power Supply Design Guide
Version 2.0
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3.4.5. Over-temperature Protection
The power supply may include an over-temperature protection sensor, which can trip and
shut down the power supply at a preset temperature point. Such an overheated condition is
typically the result of internal current overloading or a cooling fan failure. If the protection
circuit is nonlatching, then it should have hysteresis built in to avoid intermittent tripping.
3.4.6. Output Bypass
The output return may be connected to the power supply chassis. The return will be
connected to the system chassis by the system components.
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