1、可能是灰尘积累造成,打开电脑主机侧盖,清理主机内积尘。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d6ca7bcb0a46f21fe630b1cbe4246b600c33ae26?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、可能是显示器信号线松动脱落,检查并重新插上信号线。
3、可能是电源故障导致主机工作不正常,无法点亮显示器,可以更换电脑电源测试。
4、可能是电脑主板故障,可更换主板测试。
5、可能是CPU故障或接触不良,重新安装CPU,安装时清理干净CPU插槽内的积尘。
该答案适用于酷耶CY09等多数品牌型号。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/0b55b319ebc4b7453da2ef8fddfc1e178a821570?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_450%2Ch_600%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
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