Desktop Motherboard Lead-Free Soldered Component Removed
One college student came to my place referred by one of residents of our society. He wants to replace one capacitor which looks bulged & discolored. On asking about motherboard problem he is also not aware because he got this Motherboard from his colleague in his college. He tried to replace the Capacitor but he was not succeeding.
Cleaned top of the capacitor & here close look.
Turned back the Motherboard & I found some
flux is already there, as I told this student already tried.
Removed the capacitor from the motherboard was a bit complicated. Newbies does not have experience in removing the Lead-free solder.
I removed capacitor using Desoldering pump, Desolder wick following cleaning through hole using soldering iron & pointed needle.
Cleaned hole using needle.
Removed Capacitor has the value marked on it- 820uF/ 6.3v.
Opened my Capacitor box & found exact replacement.
Cleaned soldered points using IPA & handed over the motherboard to the student.
This article was prepared for you by Yogesh Panchal who works as a Computer Hardware Engineer in Mumbai India.
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Note: You can check his previous repair articles on 5V USB Adapter Repaired
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Albert van Bemmelen
November 8, 2024 at 8:16 pm
Nicely done cleaning the through hole e-cap position using soldering iron & pointed needle! Which on these multilayer computerboards is never easy and requires enough solder heat and the right tools!
Yogesh Panchal
November 16, 2024 at 12:25 am
Albert, Good quality flux is always helping for better soldering job.
Waleed Rishmawi
November 8, 2024 at 11:51 pm
Mother boards are not easy to handle without experience so I hope the guy learned something today. Have a blessed day
Yogesh Panchal
November 16, 2024 at 12:29 am
Thanks! Waleed,
Now a days desktop motherboards repairing is no longer suitable from earning point of view.
Eric Rice
November 9, 2024 at 12:49 am
Good job! For a help, first, remove what lead free solder you can with your solder sucker. Resolder the component with lead solder, a fair amount as well. Then desolder with a solder sucker, most of the lead free will come out at this point, and the hole should be clear, however, there seems to be always that one that requires a second or third treatment to clear the hole. If at least one hole is clear, heat up the other post and remove the device. This will make clearing that hole easier using the above method. Tools make a real difference, if your doing electronics to earn money, buy a desoldering iron with a vacuum pump. Chinese types are getting very affordable and reliable!
Hope this helps,
Eric
Yogesh Panchal
November 16, 2024 at 12:38 am
Eric Rice,
Agree with your de-soldering process & de-soldering iron with a vacuum pump is also good and cheap Option, Easy to use and clean rather than desoldering gun.
Mark J
November 9, 2024 at 3:52 am
Yogesh good job on the repir.
Yogesh Panchal
November 16, 2024 at 12:39 am
Thanks! Mark J
Parasuraman S
November 9, 2024 at 1:23 pm
Good job there! Folding the desolder wick like a wire, holding it in the hole and applying heat and gently pulling out would clear the hole quickly and easily.
Yogesh Panchal
November 16, 2024 at 12:54 am
Good Idea sir, sometime it is not effectively work conical pointed soldering bit tip on desoldering wick,but works great using beveled ,chisel or knife tips depends on area to clean.
i found this cheap product for removing through hole components very effectively.