Comprehensive Anti-static Inspection
Many computer devices have enclosures for electrostatic and electromagnetic shielding, such as the steel casing of the power supply, fully enclosed metal chassis, and a full shielding cover at the rear of the monitor. The circuit boards and drives inside the chassis are connected to the chassis using metal plates and screws, ensuring the entire host is a charged entity.
All of this is connected to the ground wire of the three-phase power interface through various leads; this is shielding grounding. Grounding is the only way for the host to eliminate static electricity. The lower the resistance of the grounding conductor, the better, ensuring timely discharge of static electricity.
Given the inconsistent building quality today, checking if your home has a ground wire is wise and necessary. Turn on a three-phase socket; normally, the third plug will have a wire connected to it. For residents without a ground wire, don't worry. Residents of high-rise buildings can connect the third plug to their water pipes. Residents of lower floors can easily solve the problem by hammering a threaded steel bar about one meter into the ground, connecting the end to a wire, and then connecting it to the same third plug. As long as the host power supply is properly grounded, static electricity causing system instability or equipment damage is unlikely to occur.
When maintaining and inspecting the host, users can touch the metal plate of the chassis for a while to discharge any static electricity they may have accumulated, and washing their hands beforehand is also a simple and effective method. For server rooms with a large number of computers, using PVC anti-static flooring and grounding work surfaces and chair covers are also necessary measures.