How to Replace Motherboard Capacitors

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How to Replace Motherboard Capacitors
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Capacitors within a motherboard make sure that there is a uniform amount of electricity flowing through it. If there is not enough power going through the motherboard and being regulated by these capacitors, then the computer will experience anomalies like rebooting at random or freezing/locking up. If the capacitor has given out on the motherboard and there are irregular amounts of electricity going through the computer, you can experience other hardware components giving out and becoming ruined. The biggest and most daunting aspect of replacing capacitors is making sure you have the right type of capacitor for a computer.

Skill level:
Challenging

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Things you need

  • Soldering iron
  • Lead-free solder
  • Capacitor(s)

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Instructions

  1. 1

    Locate the places on the motherboard that are in need of replacement capacitors.

    How to Replace Motherboard Capacitors
    These are bad capacitors that are either "oozing" or "bulging."
  2. 2

    Acquire the same capacitor types from your local electronic store. If the capacitors are not the same in all aspects, you can run into many power problems in the future and ruin the motherboard forever.

    How to Replace Motherboard Capacitors
    Capacitors will have information on them similar to this that will identify their specific properites.
  3. 3

    Turn on the soldering iron to warm up. This will take about 2 to 5 minutes depending on the type of soldering iron.

  4. 4

    Take the soldering iron gently and touch them to the underside of the motherboard where the solder points are for the bad capacitor. Gently pull up on the bad capacitor to detach it from the board while the solder points have been heated up by the soldering iron.

  5. 5

    Replace the bad capacitor with a good one. Make sure the you use some lead free solder on the soldering iron. You will place the good capacitor gently into the solder points and transfer gently the melted lead-free solder off the soldering iron to the solder points to hold the wires of the capacitors in place like the previous capacitor.

  6. 6

    Repeat Steps 3 and 4 until call bad capacitors are replaced. Once that is done, place the motherboard back into the computer and then test it by itself. If the computer motherboard functions properly without glitches, place all internal components into the computer and then monitor the computer physically for any other anomalies.

Tips and warnings

  • Soldering irons get very hot; do not touch the tip to test if it is hot.
  • Even though the solder maybe lead-free, wash your hands thoroughly once finished with soldering.

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