Most of them are used for electrolytic capacitors and filters. There are many defects such as open circuit, short circuit and low efficiency, and the general efficiency is not high. No short circuit or short circuit must be replaced. Inefficient capacitors will be replaced sooner or later. The method is simple: unplug the bad capacitor, but leave its' leg', which is convenient for welding the new capacitor on the' old leg', because the original welding is difficult to operate. There is another method: shift the capacitor and connect it to the original welding point with jumper. All this is to avoid the difficulty of on-site welding.

There is a broken capacitor on the computer motherboard: there is no problem if there is no short circuit, the inefficient capacitor will affect the performance of' power supply' and' filtering', and the capacitor will be completely dry, which will affect the boot difficulty.