推荐回答（1个）
The AC power adapter wattage and type cannot be determined电源适配器不能被正确识别Thebattery may not charge电池可能无法充电The system will adjust the performance to match the power available系统将自行调整性能配置以适应现有的电量Please connect a DELL 90W ACadapter or greater for best system performance要达到系统最佳性能，请接入DELL 90W 或更高级别的电源适配器TO resolve this issue,try to reseat the power adapter解决这一问题，请重新接入电源适配器strake the F3 key (before the F1 or F2 key)if you do not want to see powewr warng messages again如果你不想再看到电源警告信息，请按下F3键（在按F1或F2键之前）Strike the F1 key to continue,F2 to run the setup utility按F1键继续，按F2键执行安装程序
DELL的适配器提供两个东西，一个是电源，一个是适配器相关数据(由插头中间的细针传输)，
可能是适配器损坏，无法提供相关数据。此时适配器仍可使用但电池不能充电如果平时不怎么用电池就无所谓了（拿到同型号的电脑上充满电，以备突然停电使用，平时不用电池），否则还是换一个适配器吧
不想看到这个画面按 F3试试
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