Motherboards - the largest circuit boards inside laptops and desktops - often contain a \"mother lode\" of gold.
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Gold is used in many places on motherboards: IDE ports, PCI Express slots, PCI, AGP, and ISA, as well as other ports, jumpers, processor sockets, and DIMMs on older motherboards, which are often covered with a layer of gold a few micrometers thick.
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cpu
The central processing unit is a square, microchip-like component that you plug into the motherboard.
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The CPU is gold-plated with nanotechnology. And only use it in the most critical areas.
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Usually, the place where they hide gold is around their edges, with hundreds of gold-plated stitches, and if you have enough of them, they can be worth a lot of money.
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memory chip
Memory chips also have gold, but it is thin, measured in um, and can be seen right where the gold finger (intended for contact conduction) is.
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Internal modem, Ethernet interface board, graphics card and other peripherals
Almost all desktop computers contain at least two of these \"extra\" boards. They can contain a lot of gold - both in their stitching and in their surface layer.
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What about wires, cooling fans and other internal components?
These parts can contain aluminum, copper and other metals that can be recycled. However, the real value lies in the above components.
1) Gold-containing electronic components, video recorders, record players, meters, analyzers, computers and other instruments and electrical appliances, some of the contacts, leads and circuit boards also contain gold.