电脑变得异常卡，重启后出现这个！ 这说明什么情况！ 还有怎么解决 ！图片插不上来！ 英文如下！
The AC power adapter wattage and type cannot be determined.
The battery may not charge.
The system will adjust the performance to match the power abailable.
Please aonnect a Dell 90W AC adapter or greater for the best system perf***(图片没拍到）
Strike the F3 key(before F1 or F2 key) if you do not want to see power **（同上）
Strike the F1 key to continue ,F2 to run the setup utility.
