my pc sounded with a long noise "zi.....zi......", shortly after I turned my pc on. I think it must be something wrong with the CPU of my computer. what should I do now? Some advice who can give me? thanks! (我的电脑一开机就“兹兹”叫,系统也打不开,我想是不是CPU问题,谁能给些建议,谢谢)
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