Unverified90% confidenceDecision RuleTime unknown
4张RTX 4090满载功耗约1800-2000W（含CPU/主板），需配置2000W以上钛金/白金电源或双电源冗余方案，且需专用20A电路，普通民用16A插座单路无法稳定供电
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90%
Confidence
Long-term
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Unverified电源额定功率应为整机峰值功耗的1.3-1.5倍留余量，RTX 4070Ti/4080需650W-750W金牌电源，RTX 4090需850W-1000W并优先ATX3.0原生12VHPWR接口83% similarUnverified游戏主机的电源功率应≥显卡TDP+CPU TDP+150W冗余，例如RTX 4070(200W)+i5-13600K(125W)建议配650W金牌电源，RTX 4080及以上建议850W81% similarUnverified电源额定功率应为整机满载功耗的1.5-2倍留余量：搭载RTX 4070级别显卡建议650W金牌，RTX 4080/4090建议850W-1000W金牌及以上81% similarUnverified电源瓦数计算：显卡TDP + CPU TDP后预留50%冗余，如RTX 4070(200W)+i5(125W)约325W，选650W金牌电源留足升级空间80% similarUnverified电源功率选择应按显卡TDP+150W预留，如RTX 4070Ti（285W）建议750W金牌电源，RTX 4080/4090建议850W-1000W，避免瞬时功耗触发OCP保护重启79% similar
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