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旧 Nov 20th, 2012, 21:52     #1
Taotaoba
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默认 电脑开关电源

那位大大对电脑开关电源比较懂?家里台式电脑的电源有问题了,一开机亮一下灯就停了。我拆开看了,发现是输出3.3V的部分有问题,输出电流超过1A就停了,额定输出应该有30A呢。 估计是过流保护电路出问题了,不过不知从何处入手。望指点。

顺便吐槽一下Acer电脑,设计极不合理。功耗大,用了没两年,已经烧了我3个电源了,不想再换新的了。上次加一个硬盘,非得我把里面几乎都拆空了,才勉强找了一个位置装上。而7、8年前买的两台DELL电脑,到现在用得杠杠的,一点问题没有。估计我这辈子不会再买Acer电脑了,送给我都不要。

听惯风的温柔,听惯风的怒号,就连他自己的梦也容易忘掉。
=========
我现在最喜欢的歌
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旧 Nov 24th, 2012, 19:36     #2
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默认

买了一个700W电源(原机装350W),再烧我就把宏基扔台湾海峡去!
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旧 Nov 24th, 2012, 21:41     #3
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默认

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作者: 7jours 查看帖子
那里买的?能详细说一下吗,俺的宏基也是同样的问题,
futureshop. http://www.futureshop.ca/en-CA/produ...6b216daf98en02

话说还有一个650W的,却比这个贵。没看出哪儿好,就买这个了。如果你换下来的电源没处扔,可以送给我。我尝试修修看,修好了就还给你,修不好就当垃圾送给我了。
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感谢 Taotaoba
此篇文章之用户:
7jours (Nov 24th, 2012)
旧 Nov 30th, 2012, 10:44     #4
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默认

收到电源了。装上了以后好了,用了一天,一模一样的故障又出现了。什么问题?主板?显卡?
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旧 Nov 30th, 2012, 19:22     #5
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默认

显卡拆了,还是不行。把主板上的一个4针电源插头拔掉,就可以启动了。一插上,又熄火了。

https://lh3.googleusercontent.com/-D-yBd2Oh6SI/ULlM6Fah0VI/AAAAAAAARgk/sozJ1TUN1JQ/s1044/IMG_0974.jpg
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旧 Nov 30th, 2012, 19:24     #6
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默认

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赶快把电源退了,用电源的钱去买个二手电脑,旧电脑摘下硬盘扔了。
也许只能这样了 但是习惯了不榨干最后一点血不罢手的伤不起啊!
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旧 Nov 30th, 2012, 23:36     #7
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默认

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这是专门给CPU供电的12V, 拔了后还能启动电脑?希奇!
我是说电源能启动了,CPU有没有不知道。不过给CPU供电的不是3.3V吗?这个是12V的。
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旧 Dec 1st, 2012, 14:09     #8
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默认

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家里还有几个电源,我今晚去mississaga,黄金广场
你要需要,可以带过去。
也是几年前瞎折腾时流下来的,
现在很佩服瞎折腾的人
谢谢了,不过看来电源没问题,是主板或显卡什么地方的问题。
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旧 Dec 2nd, 2012, 11:11     #9
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默认

终于搞清楚这个奇葩的故障现象了。需要先把这个4针插头拔掉,然后开机,等5秒左右,把它插上,动作要快,然后就能正常启动了。之后就是关机再开,也没问题了。但不知道几个回合之后,又启动不了了,要再从头开始。。。

主板上我检查了下,没发现异常的电源芯片等等。彻底晕倒 话说这个4芯插头是给哪块供电的?有没有一个通用的PC主板电路图供参考?
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