电脑开机一半就熄火是怎么回事?

2025-03-15 09:54:46
推荐回答(5个)
回答1:

电脑开机一半就熄火原因:
1)说明机内有短路现象。应立即关闭电源,仔细检查。
拆除所有板卡和外设(硬盘、光驱等),到最小系统看是否可以可靠启动进主板Bios界面。
2)电源本身过流,自恢复保险电路动作,切断电源输出。待保险电路恢复后你再次按下电源开关后重复故障。
3)主板电源接口电路故障,主板的上电自检程序无法完成。或者是主板的上电自检程序发现计算机硬件有致命故障,启动保护电路(或者程序)动作,关闭计算机。
4)主板CPU超温自保护关机。
检查CPU散热片与CPU之间是否存在间隙或导热不好。涂好导热硅脂,旋紧风扇紧固螺栓。
5)主板上元器件出现故障,会让输出电压失衡,从而触发CPU过载保护功能自动关机。

回答2:

把机箱盖打开,看看主板上的电容暴浆没有。有时候电容损坏的话会让CPU电压失衡,从而触发CPU过载保护功能自动关机。我以前的电脑就是这样。

回答3:

估计是你的CPU风扇不转了。散热不好,摸机箱是摸不出来了。

回答4:

汽车啊?还熄火的。。。电脑开机都完成不了不像软件问题(当然看具体情况,你也没有说清楚启动时显示内容,只能常规判断),检查你家的市电电压低不低,并你将电脑周边的大型电器关掉。还可以将电脑自身带的摄像头等不用的设备拔掉,将机箱打开光驱电源线拔掉,如果不行,你就要换电源了。

回答5:

1、散热不良
2、电源问题
3、主板问题

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