CPU断脚后还能修复吗? 详细03

2025-02-06 14:47:26
推荐回答(1个)
回答1:

不能了,是吧。不错,一般情况下确实
是不能修复了。但我就曾经有过一例修复断脚的成功经历。
CPU 的断脚处刮干净,尽可能的把断脚根部露出来。要注意的是,PⅢ
CPU 采用的是陶瓷封装,硬度相当的大,而且比较脆,一定要小心。在放大镜下我们
可以轻易地看到该管脚的根部的金属。这一步一定要将该管脚的根部用手术刀刮干净,保证
该表面没有氧化层,以便在下一步对该管脚根部上锡。
烙铁在焊接的时候因为静电的关系往往会将集成电路击穿。而且烙铁头一定要尖,因为你需
要将一段引线焊接到这个折断的管脚根部才行。下来我们还需要找一段很细并且柔软的焊接
线,我使用的是直径为0.2mm 的铜芯焊接线。
丝(本人使用的是0.4mm 的焊锡丝)同样贴紧到该处,几秒钟以后,该断脚的根部就应该被镀
上了光滑的焊锡了。这一步的关键是烙铁的头部一定要尖,焊锡丝一定要细,而且要使用中
间含有松香的那种焊锡丝,才可以保证上锡质量,然后再给焊接线两头上锡。
轻松将焊接线和折段的引脚焊接到一起了。这一步的关键是将焊接线和该引脚焊接在一起的
时候,需要贴近CPU 的底面,以免焊接的焊点太大引起CPU 不能完全插入Socket
370 的插座,使得 CPU 别的引脚出现接触不良的现象。现在要注意的是,虽然我们已
经将引线和该CPU 的断脚焊接到一起了,但是因为焊接面非常小,所以抗拉的强度非常的低,
要小心地取放。该焊接线的裸露部分比较多,为了保证在该CPU 插到Socket
370 的插座里面的时候不会出现短路现象,我将焊接过的地方套上了黑色的套管。
CPU插入主板的插座里了。就像插一个正常的CPU一样,
不过要小心那条我们焊接的引线,千万不要拉断。在实际操作中,这一步操作的确需要相当
地小心。而且在将CPU 锁紧杆锁紧的时候最好用手将CPU 断脚处用力压向Socket
370 插座。使得断脚附近的CPU 其他管脚接触得更好。下来还要将该CPU 的散热风扇
安装上。此时小心地给焊接线加力,看看焊接线是否依然焊接在该断脚上。确定无误后就可
以用热溶胶将该焊接线和CPU 粘接在一起了。然后将该引线引至主板反面,将另外的一头焊
接到该断脚应该连接的焊点。确定无误以后,使用胶带将该引线固定在主板反面。
CPU 就可以加电试机了。如果以上的操作无误的话,应该一通
电就可以正常使用了。此时PⅢ-733 的字样在显示器上显示出来感觉异常的美丽。好了,这
块CPU 就算是起死回生了。美中不足的是,因为该CPU 已经和这块主板粘接在一起了,以后
升级这部计算机只能连主板一起更换了。不过,同事已经很开心了。

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