大家好，下面小編給大家分享一下。很多人還不知道電腦主機開機時發生了什么。下面詳細解釋一下。現在讓我們來看看！

1.電腦開機，藍色信號燈不亮，很可能是內存接觸不良。

2.解決方法:關機(如果電源開關無效，長按開關直到電源指示燈熄滅或者直接拔掉電源線)。關閉機箱，再次插拔內存條，用橡皮擦往一個方向擦金手指(也可以刮拇指背面和指甲)。如果可能的話，可以安裝在不同的內存條上，然后開機(操作前要雙手摸墻釋放靜電或戴防靜電手套)。

如果不會操作，那就更簡單了:只需拍打或踢一兩下機箱(注意位置:機箱左右兩側外殼的右中心，后面沒有接口；注意:不要太用力。以上可能需要重復。如果不行，就需要更換內存條。如果有兩個以上的內存條，需要逐個測試。

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以上解釋了電腦主機開機時藍色信號燈不亮的原因。這篇文章已經分享到這里了，希望對大家有所幫助。如果信息有誤，請聯系邊肖進行更正。