AC power adapter wattage and type cannot be determined. the battery may not charge. the system will adjust the perform if it can not match the power avalible. please connect a dell 65w AC adapter or greater for best system performmance. to resolve this issue try to reset the power adapter. press F2 to run the setup utility ,press F5 to run the onbroad diagnoise, press F1 to contuine.交流电源适配器的电压和类型无法确定.电池可能无法充电.系统将调整工作状态如果无法适应可供电源.请连接戴尔65瓦以上电源适配器以获得最佳系统性能.为解决此问题请尝试重新连接电源适配器.按F2键启动配置实用程序.按F5键启动自带诊断程序.按F1键继续.