We have already gone through this. Gold is a great driver that takes a long time to rust. That is why printed circuit boards can take a bath of precious metal, as happens with the connectors, pins and wires of our electronics.
Almost all electronic circuits have a small percentage of gold that are used in their manufacture to improve conductivity especially between the pins and the core of the chip thus obtaining better and more solid connections
To get precisely the gold of most computer chips (mostly from microprocessor) but also from RAM modules, motherboard, hard disks, etc, so that anyone can get gold from all Its electronic waste in a more pure form with fewer complications.
In the following post will show the easiest way to get gold from the electronic components