[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

追求静音优先选PWM(4pin)接口风扇而非DC(3pin):PWM可在20%-100%全区间线性调速且低转速稳定,DC调速在低电压下容易停转或异响。主板需有对应4pin接针

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