How long does it take for a computer to burn a fuse when it s turned on

The newly bought machine was not turned off for a week at the beginning, called burning the computer, which was to cause the consequences of turning on the machine for a long time in the future, I saw a machine in the TV station, and the machine was not turned off for half a year, and it was still running normally. This depends on your machine itself, the power supply is better, the heat dissipation of the machine is better, a week is definitely not a problem, my machine is often not turned off for a week, there is no problem!

It is best not to leave the computer on for a long time, and it is best to hang up (16 to 20 hours of booting, 30 minutes to 2 hours of rest when the computer is turned off), so that the temperature in the computer can be lowered.

It is best not to turn on the monitor when hanging up, and the life of the monitor tube is generally 50,000 hours.

It is easy to overwhelm the motherboard capacitance when you drive the computer for a long time, even if you dissipate heat well.

Unless your PC is up to server configuration.

Change to a better power supply.

Close once a week.

Turn off for half an hour at a time.

TT350W is sufficient.

You'll definitely be able to handle it.

Burning the fuse will only happen when there is a short circuit, what you said, it may be caused by a power supply problem, which is related to the computer power supply row x mains.

After a long time, it will burst the "fuse", of course, it will not storm the computer, the computer will be very stuck, and I have encountered such a phenomenon when playing games and hanging up.

Change the power supply, otherwise take the side panel of the host away when hanging up, as long as the heat dissipation is good, there is no problem with continuous booting.

When the load on the computer is relatively large for a long time, such as the loss of electrical components, the computer also needs to rest. But it's not as exaggerated as the landlord said.

I used to use the Tsinghua Tongfang one, and the fuse burned out, and the display burned out,,。 Specifically, I think the power quality of Tsinghua Tongfang is too poor.

The power adapter, whose English name is power adapter, is a power conversion device mainly used for small electronic equipment and electronic appliances, which is generally composed of a shell, a power transformer and a rectifier circuit.

1. Line failure.

Line faults, including power cord damage and lack of power, poor oxidation contact of contact ports, etc. Focus on checking whether the input line and output line are energized.

If the line is faulty, it can be solved by replacing the power cord.

Second, the output voltage is too low.

The following are the main causes of low output voltage:

1 Switching power supply load short circuit fault (especially DC DC converter short circuit or poor performance, etc.), at this time, first disconnect all loads of the switching power supply circuit, check whether the switching power supply circuit is faulty or the load circuit is faulty. If the load circuit is disconnected and the voltage output is normal, it means that the load is too heavy; or it is still abnormal, indicating that the switching power supply circuit is faulty.

2. Failure of filter capacitor or rectifier diode at the output voltage side can be judged by the substitution method.

3. The performance of the switch decreases, resulting in the switch tube being unable to be turned on normally, which increases the internal resistance of the power supply and decreases the load capacity.

4. The defective switching transformer not only causes the output voltage to drop, but also causes the switch to be excited enough and damages the switch tube.

5 300V filter capacitor is poor, resulting in poor load capacity of the power supply, and the output voltage will drop as soon as the load is connected.

3. The output voltage is too high.

Excessive output voltages typically come from regulated sampling and regulated control circuits. In a closed control loop composed of DC output, sampling resistor, error sampling amplifier such as TL431, optocoupler, power control chip, etc., any problem with any one of these parts will cause the output voltage to rise.

Fourth, the fuse is normal, no output voltage.

The fuse is normal, and the absence of output voltage indicates that the switching power supply is not working or has entered a protected state. The first step is to check the value of the starting voltage of the starting pin of the power control chip, if there is no starting voltage or the starting voltage is too low, then check whether the external components and starting resistance of the starting pin are leakage.

If the power control chip is normal, the fault can be quickly found through the above monitoring. If there is a starting voltage, then measure whether there is a jump of high and low level at the output end of the control chip at the moment of start-up, if there is no jump, it means that the control chip is damaged, the peripheral oscillation circuit components are damaged or the protection circuit is faulty, and the peripheral components are checked one by one by replacing the control chip and checking the peripheral components; If it is in the case of jumping, most of the cases are due to poor or damaged switches.

There are many reasons for the damage of the computer power fuse

The voltage of the power supply from the city grid fluctuates, and there is high-voltage interference in the power supply line.

The computer's power supply has been struck by lightning.

The power supply has been working at full load, causing the fuse current to be near the rated value for a long time, and the fuse is aging and damaged.

The output of the power supply is short-circuited.

The power supply circuit components are damaged.

The problem is huge.

The next time a lightning strikes, the motherboard, hard disk, and graphics card connected to your power supply will all be burned, and the loss will be heavy.

Replace it with a new one, or the computer may burn out next time.

There will be no problem with the computer, go and change the transformer.