The miner doesn't work when the fan is changed

1. Use your brain to know that the fan can't mine... Graphics card has powerful parallel computing power, which is much more efficient than CPU when it is used to mine. In the past, many people used to mine with graphics card, resulting in the high price of a card. But now, bitcoin is collapsing. No one is digging. In the later stage, people didn't have to dig with graphics cards. They used specially designed circuits and quick miners. They couldn't even earn their electricity bills.

2. The first way is to replace it with a new fan
the second method is: if the fan has a shaft core which can be oiled, it can be removed, the st on it can be cleaned thoroughly, and then a proper amount of engine oil can be dropped into the shaft core of the fan, so that the fan can operate normally after operation.

3. Now all graphics cards support intelligent hovering technology, that is to say, when your graphics card temperature does not reach a certain level, the graphics card fan will not work and will not rotate, so as to rece noise and save power.

4. Look at the electronic fan. If it's a car's electronic fan, there is a relay. If the relay is burned out, the electronic fan will not turn, because the temperature control switch or computer control is a low-voltage circuit, while the electronic fan is a high-voltage circuit, so it is controlled by the relay.

5. 1、 The host light is on, indicating that there is no problem with the power cord connection, or the power supply is generally in good contact. But the power fan does not rotate, Description:
1. The computer power supply itself is damaged. The judgment method is to remove the power supply and connect the blue wire and ground wire in the motherboard plug. If the power fan rotates, there is basically no problem with the power supply
2. The short circuit of a part in the power load causes the protection of the power itself. The elimination method can use the replacement method to find out the short circuit parts, so as to solve the problem
3. If it is not a peripheral component, it may be the motherboard itself. Finally, if the exclusion of other components, only try to replace the motherboard!

6. Check the motor
in general, the fan runs slowly and the capacitor is damaged
there is no problem with the wiring, the capacitance is good, and the motor should be detected if the power is on
in this case, considering the problem of the motor, if it is replaced, it will cost more than ten yuan.

7.

The reason and treatment of the electric fan not working:

the first step is to measure the operation and speed regulating winding of the electric fan:

1. first, rotate the timer of the electric fan. When you hear a click, the timer is normal

2. if there is no click, the timer is damaged. If there is no resistance value, the motor winding may be burnt out and open circuit

3. for the motor with thermal fuse in series, the thermal fuse may be open circuit,

4. the motor should also be disassembled to have a look. If it is only open circuit, short circuit the thermal fuse can return to normal

5. all gear switches are damaged, but it is unlikely

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the second step is to check whether the motor holds the shaft:

1. remove the cover of the electric fan and rotate the motor shaft by hand. If it can't rotate, it means that the motor holds the shaft seriously

3. disassemble the motor, first remove the oil and rust on the front and rear axle sleeves and motor shafts, and then add enough sewing oil on the linoleum of the front and rear axle sleeves, most of the electric fans can be eliminated

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the third step is to measure the starting capacitance:

1. if the motor shaft rotates flexibly, the starting capacitance of the electric fan motor should be measured

2. first, use the multimeter R × one hundred Ω Measure the resistance values of the two ends of the starting capacitor of the motor, the running, starting and speed regulating windings of the whole electric fan motor, that is, the resistance values of the black and yellow leads

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maintenance of active electric fan:

1. generally, the motor slightly holds the shaft. The reason is that the lubricating oil of the electric fan is missing at the initial stage

2. the electric fan motor can be directly disassembled and the front and rear axle sleeves can be repaired by adding enough sewing oil on the linoleum

8. It depends on the wiring, probably the input part of the wire is normal, but the welding gun head may not be electrified. Open circuit. In addition, welding is necessary to form a loop
you can use the welding rod as a fuse, and the workpiece or worktable is electrified. When the welding machine proces high voltage current, the welding rod melts and the molten iron flows into the weld
if the electric welding machine does not work, it is very likely that the circuit is not electrified, with basic anti electric shock knowledge or electrician certificate. You can try to detect if there is a poor contact or open circuit in the wire. Under the condition of ensuring your own safety, you can replace the lines inside the machine with good wires in turn (that is, the old wires are not removed, and a new wire is connected). Find the broken or broken wire. If it's not the wiring problem, it's the damage of the components that regulate the voltage and current inside
I'm not a professional. I think the professional is still working. Experts are designing the drawings. Our company has this equipment, and then there are welding robots, Panasonic
maintenance is basically done by me, but the multimeter is used to check the power on condition.

9. It's not necessarily the problem of the power supply fan. When you change the fan, you must take down the power supply. When you install the power supply, you have not forgotten or made any mistakes in the wiring.

pay attention to whether the external connection between the power supply and the plug is reliable.
plug in the power supply plug again, and insert some memory and graphics cards

then remove the main board battery with a small awl, discharge it, and then install it. Try pressing the start button several times. Generally, there won't be a big problem

10. If the electric fan doesn't work, it should not be connected to the power supply. If it is connected to the power supply and doesn't work, the fan is broken.