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If desktop computer is not used for half a year, do not blindly plug host computer's power supply into an AC outlet because you don't know if computer will be damp or dusty for half a year. . The power supply does not need to be connected directly, and it is necessary to check if there is a lot of dust inside computer case when connecting power supply; since the computer is used at home, there will be a lot of dust. dust inside after a long time.

Because it's a desktop computer that hasn't been used in over half a year, I thought it was a normal computer that I could use when I went home. When I turned it on, there was thunder, so I turned it off. it immediately down, and again cleaned it with a brush and hair dryer. Finally, it was not so easy. Prepare your computer. Dust removal seems very simple, but it is indeed a solution that I have constantly summarized and analyzed in process of using computer and helping others to repair computer. After such treatment, impact of a sudden power on will be greatly reduced Damage to machines and equipment or likelihood of problems.

If you blindly turn on power, it will burn out immediately. There are also cases where machine breaks down after an hour or two, and there are cases where it takes two or three days. Remove dust faster. If it cannot be blown off, shake it off immediately. When blowing it is necessary to pay attention to wind speed. This can be adjusted. It is especially emphasized that this power supply must be removed, and then blow off dust inside with a brush or hairdryer, clean it, and then blow it with a hairdryer. The second way is to heat up. Heating means blowing hot air with a hair dryer, through which all power is blown off to motherboard and memory. It's better to remove CPU and blow it up together. If it doesn't work out at all, then it can endure again. Then remove battery from motherboard. Then he brought hair dryer to hot air zone, which warmed up motherboard, memory and processor. In this process, it should pay attention to temperature control. He cannot let temperature rise too high. It will stop when almost finished blowing, let it cool down naturally, key is to cool down naturally.

If you do, it's best to blow twice. After first purge, wait for it to cool down naturally and then wait until it cools down again. It is better to remove CPU separately and blow it away with memory. The same goes for power supply. Blow out with hot air or a hair dryer after disassembling case. Finally, use eraser to remove gold finger on memory to remove oxidized part of surface with eraser.

Clean contacts on surface of CPU with rubbing alcohol, and then dry them with a hair dryer. After cooling, install all accessories, how to disassemble them and install them back. It won't go wrong and it can be opened and enabled after installation.

Check if screen is displayed. If screen is not responding, memory module may have been inserted in wrong place. In this case, first change memory to another slot, maybe memory is not making good contact, and then turn it over and reboot. You can then see that it has been rendered. If yes, it indicates that time is not accurate because 3V button battery has just been disconnected and time can be adjusted at this time.