After the rainy weather, the desktop computer can't start.

This situation is generally caused by excessive dust accumulation inside the chassis and the short circuit of some circuits caused by humid air. Motherboards generally have short-circuit protection function, which will cause the host computer to fail to start or some circuits to fail to work.

You can try to disassemble the chassis, clean the dust inside the chassis with a new paint brush or combination brush, unplug the CPU and memory on the motherboard, and wipe the metal contact feet with an eraser;

Pull out the graphics card and other cards on the motherboard from the motherboard slot for cleaning; Then clean the dust of CPU fan and motherboard; It's best to disassemble the power supply. The power supply fan is an important place for dust accumulation.

You can use the cold air of the hair dryer to blow off the dust in the corner that can't be wiped, and then reinstall the board, CPU and memory, and then power on the tester after checking that it is correct.

Generally, the main engine needs to do internal dust removal once a year, and this time will be shortened in wet areas.