Unverified92% confidenceDecision RuleTime unknown
550W电源对当前配置够用但余量有限，未来若升级更高功耗显卡（如RTX 4070级别）需同步更换电源
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92%
Confidence
Long-term
Relevance
-
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Unverified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80% similarUnverified电源功率需按显卡留足余量：RTX 4070级别建议650W以上，4080/4090建议850W以上并选ATX 3.0/原生12VHPWR接口，避免转接线烧毁风险80% similarUnverified电源功率不能只看CPU+显卡额定功耗之和，需预留30%余量并选80PLUS铜牌以上；RTX40系高端卡瞬时功耗尖峰高，低质电源会触发保护关机76% similarUnverified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76% similarUnverified750W金牌电源搭配4070 Super和7800X3D功耗余量充足，但若未来想升级到4080或更高功耗显卡，需要同步更换电源75% similar
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