what are the processors golden colour pins and RAMs gold colour parts made of? just the gold paint or ?
Most processor pins are copper alloy, typically Oxygen-free copper, first electroplated with gold. SOME older higher end CPUs actually had pins made of solid relatively pure gold. if the CPU is DEAD bending a pin flat against the CPU body then bending it straight again will usually cause it to snap off and even if it doesn't break right off either bending it down or bending it up the copper based alloys work harden and resist bending back straight where they were first bent, so they quickly get all kinked and the typical result of trying to bend it straight makes it look like a metallic pubic hair. IF you actually find an older CPU that you can bend one or more pins over then straighten them out with relative ease and they are actually STRAIGHT when you are done these are typically Gold alloy pins, because gold is the most ductile metal known, it does not work harden no matter how much it's bent back and forth I have a couple of older AMD gamer CPU's (dead ones) that you can literally bend all the pins back against the CPU body, then spend hours bending them all straight again and this can be done repeatedly without a single pin breaking.the pins in question are pretty much pure gold. Unfortunatly there is only about 1/40th of an ounce of gold there (about $45 worth of gold) The finger contacts on RAM SIMMs and on computer accessory cards are a layer of gold plating over essentially pure copper, it is a very thin plating layer (Circuit boards are made by a photo eching process that starts with a copper coated fiberglass sheet and the copper they don't want is removed) It should be noted that to be commercially viable a gold mine must get about an 1/10th ounce of gold from each ton of ore, you can easily get 100times as much gold from processing scrap computers, there is only a small amount of gold in each one, but there is always SOME gold. which is a hell of a lot more than you can say about a random shovel full of dirt even on good gold mining ground