As soon as winter comes, the computer becomes ill: it can't start up, and the chassis squeaks twice after pressing the power button and shuts down. Sometimes it takes dozens of consecutive startups to start the computer normally. Speaking of this situation, it is not once or twice. It is normal in other seasons. Why does this happen in winter?
It’s very common to be unable to boot due to cold weather, especially in the south. Most people have encountered similar situations due to the lack of indoor heating equipment. In summary, there are three main reasons:
Poor contact
When the external environment is too low, thermal expansion and contraction will occur. When the solder joints between the components and the circuit board expand and contract with heat, cracks or contact failures will occur. The computer starts in a cold weather and needs an adaptation process.
Decreased conductivity
The boot temperature of a general home computer is between 5 degrees Celsius and 40 degrees Celsius. Every 10 degrees Celsius above the normal range, the computer's performance will drop by 25%. The computer motherboard is equipped with a battery. When the computer is turned on, the viscosity of the electrolyte inside the battery will decrease, the conductivity of graphite will decrease, and the lithium ions will diffuse to the negative electrode of the stone, which is easy to precipitate lithium crystals. When crystals precipitate inside the battery, the electrical conductivity of the circuit will deteriorate, and the various capacitors and resistors on the circuit board will malfunction.
Poor parts materials
If the computer motherboard uses materials with poor low-temperature characteristics, the computer can only be started normally after preheating. In addition, after the computer's power supply fan enters the winter, the noise will be very strong when it is turned on, and the noise will be reduced after a period of use. At this time, because the lubricating oil in the fan bearing is too viscous in winter, the resistance increases. When the temperature of the hard disk is low, the lubricant in the bearing solidifies, and the platters will not be able to rotate due to the increased resistance, and the hard disk cannot be found fault.
Speaking of it, it is not a big problem that the computer cannot be turned on normally because the temperature is too low, and it is not difficult to solve it, but it takes some time, so how to solve it?
1. Turn on the air conditioner to adjust the indoor temperature . This method is a bit slow to recover, but it does not need to open the case;
2. Open the case and use a hair dryer to preheat the motherboard . It should be noted that the method of use is not too close to the motherboard, and do not blow at one place, otherwise the temperature will cause damage to the components, and try not to touch the motherboard with your hands element;
3. Plug in the power supply and power on the motherboard . It will be easy to turn it on after about 20 minutes. This does not require opening the case.
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