Unverified85% confidenceDecision RuleTime unknown
同尺寸下140mm风扇比120mm在相同风量时转速更低、噪音更小(约低3-5dB),机箱支持140mm安装位时优先选140mm
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Unverified140mm风扇在相同风量下转速更低、噪音更小,机箱支持140mm安装位时优先选140mm;但冷排孔位多为120mm间距,水冷排配套只能用120mm风扇92% similarUnverified选购风扇尺寸时优先140mm而非120mm:140风扇在同等风量下转速可低约300-500rpm,噪音显著更低,前提是机箱风扇位支持140孔距(124.5mm螺距)90% similarUnverified机箱风扇尺寸越大同风量下转速可更低更安静,优先选140mm;但需先确认机箱和散热器高度限位,很多紧凑机箱只支持120mm87% similarUnverified280mm冷排(2×140mm风扇)散热效能通常优于240mm(2×120mm),因140风扇风量更大转速更低噪音更小,机箱支持时优先选28084% similarUnverified280mm冷排(2×140mm风扇)在同等噪音下散热能力优于240mm,因140mm风扇低转速即可实现大风量,适合ITX/中塔支持280的机箱83% similar
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