If your computer is running slower than usual, randomly freezes or restarts, or refuses to boot, see the [https://www.ifixit.com/Wiki/Motherboard_Has_a_Faulty_Capacitor|Motherboard Has a Faulty Capacitor problem page] for capacitor troubleshooting help.
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Most solder wire has flux inside. When soldering large items, this flux is usually sufficient to get good wetting. The liquid residue you are seeing is the leftover and burnt flux. Depending on the type of flux, it may require cleaning.
However, when soldering smaller, SMD components, you have to apply extra flux. No Clean Solder Flux Paste is a good solution because it stays where it’s supposed to. Using Rosin RA and RMA flux leaves more residue and requires cleaning to avoid corrosion.
There are tons of resources online for solder and flux selections and you really have to try various brands and alloys to get a feel for what works for you. Generally speaking, you want a 63/37 solder but don’t buy the cheap stuff from China.
Most solder wire has flux inside. When soldering large items, this flux is usually sufficient to get good wetting. The liquid residue you are seeing is the leftover and burnt flux. Depending on the type of flux, it may require cleaning.
However, when soldering smaller, SMD components, you have to apply extra flux. No Clean Solder Flux Paste is a good solution because it stays where it’s supposed to. Using Rosin RA and RMA flux leaves more residue and requires cleaning to avoid corrosion.
There are tons of resources online for solder and flux selections and you really have to try various brands and alloys to get a feel for what works for you. Generally speaking, you want a 63/37 solder but don’t buy the cheap stuff from China.