Soldering motherboard capacitors


  1. Posts : 28
    Windows 7 Ultimate x64
       #1

    Soldering motherboard capacitors


    Hello,

    I once created thread in Crash sub-forum, where I complained about frequent BSOD's and freezes. I now took a closer look of my motherboard and found 5 capacitors that are bulging, where only 1-2 has this brown thing on top of it.
    I don't have special equipment, but since sending MB to repair service costs same much as buying new motherboard of same time, I will try to replace capacitors by myself. And I have some questions about it:

    1) Can I use regular soldering iron ?
    2) Do I have to use any liquid on motherboard=> 3) Can I burn a hole (melt) my MB with soldering iron without using any liquid ?

    Thank you :)
      My Computer


  2. Posts : 4,280
    Windows 7 ultimate 64 bit / XP Home sp3
       #2

    First off I would suggest investing in the right tools for the job. Something like this.
    http://www.sears.com/shc/s/p_10153_12605_SPM6125721501P?sid=IDx20070921x00003a&ci_src=14110944&ci_sku=SPM6125721501

    Here's a pretty good How To
    http://www.tomshardware.com/reviews/fixing-motherboard,1606-7.html

    Fabe
      My Computer


  3. Posts : 28
    Windows 7 Ultimate x64
    Thread Starter
       #3

    Soldering iron costs same much as new motherboard.
      My Computer


  4. Posts : 28
    Windows 7 Ultimate x64
    Thread Starter
       #4

    I took a closer look and found out that 5 capacitors of same type are all kaput. 1000uf, 6.3V. Why's that ?
      My Computer


  5. Posts : 925
    Windows 10 Pro
       #5

    I know this is an old thread, I have a quick question.

    A capacitor has a long end and a short end, on a circuit board there usually is a circle where the capacitor goes on, one side of the circle has lines that are diagonal the other side has nothing. What side is the negative and what side is the positive ?
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  6. Posts : 13,576
    Windows 10 Pro x64
       #6
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  7. Posts : 925
    Windows 10 Pro
       #7
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  8. Posts : 28
    Windows 7 Ultimate x64
    Thread Starter
       #8

    Long end is usually positive side of capacitor. There should also be a marking on the capacitor itself (usually large "-" rectangles showing negative side). On motherboard the white lines indicate to the negative side, there's also a "+" sign next to the clear area indicating the positive side.
    Match capacitor's positive side with motherboard's positive hole NOT vice versa.
      My Computer


  9. Posts : 925
    Windows 10 Pro
       #9

    AbMaster said:
    Long end is usually positive side of capacitor. There should also be a marking on the capacitor itself (usually large "-" rectangles showing negative side). On motherboard the white lines indicate to the negative side, there's also a "+" sign next to the clear area indicating the positive side.
    Match capacitor's positive side with motherboard's positive hole NOT vice versa.
    I see the negative side on the capacitor. Didn't know that :)
      My Computer


 

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