How to solder a burnt CPU power supply inductor?

Burning out the CPU power supply inductor is a common fault, and repair requires superb welding skills. PHP editor Apple will detail here how to weld and replace the burned CPU power supply inductor step by step, and guide you to successfully complete the repair.

#How to solder the CPU power supply inductor when it is burnt?

First of all, you need to make sure that the CPU power supply inductor is burned out and a replacement inductor of the same model has been purchased.

Then, use a soldering tool to remove the burned inductor from the motherboard and clean the residual solder on the pad.

Next, align the new inductor with the pad, secure it with solder and make sure the connection is firm.

Finally, use a multimeter to check whether the welding is normal. Once confirmed, you can reinstall the CPU. Be sure to operate with caution to ensure that the welding work meets safety requirements.

How to distinguish computer motherboard capacitors, inductors, and resistors?

Capacitor: cylindrical, with the main mark on it is the withstand voltage and capacity. Such as 50V/47uF.C Capacitor Resistor: cylindrical, but lying on the circuit board, with a colored ring, such as: red' There is generally no standard for the shape of yellow, brown and other R resistors and inductors. The main thing is to look at the code on the circuit board. L is the inductor.

Is the inductor whistling on the motherboard broken?

1 It is not necessarily broken. 2 The whistling of the mainboard inductor may be caused by loose or aging components inside the inductor. It may also be caused by unreasonable power design of the mainboard or electromagnetic interference occurring nearby. The inductor device oscillates and emits a whistling sound. But it doesn't necessarily mean it's broken. You can troubleshoot by checking and replugging the power cord and data cable. 3. If it is indeed damaged and the inductor needs to be replaced, it is recommended to find a professional to perform the operation. At the same time, check whether the surrounding circuits are affected to prevent similar failures from happening again.

What do the inductors on the graphics card and motherboard mean? How do you differentiate between the phases of power supply?

Generally only look at the phase power supply of the CPU. Each phase of power supply consists of an inductor and two or three field effect transistors. Just count how many inductors there are next to the CPU base. The graphics card is powered by a PCI-E slot and a six-pin or eight-pin auxiliary power supply. There is no such thing as a few phases.

How many inductors does a laptop motherboard have?

Six inductors.

The six-phase power supply principle is as follows

Each 1-phase power supply circuit on the CPU consists of an inductor coil (sub-coil and closed inductor), two field effect transistors and one (or more) ) capacitor composition. Then you only need to count the number of capacitors around the CPU to basically see how many phases the CPU is powered by. If the number is 6, then the CPU is powered by six phases, referred to as six-phase.

How to measure the quality of mobile phone motherboard inductor?

The quality of the inductor can be judged by the following methods:

1. Observe the appearance: Check the appearance of the inductor for damage, corrosion or deformation. If obvious damage is found, The inductor may need to be replaced.

2. Measure the inductance value: Use a multimeter or LCR meter to measure the inductance value of the inductor. If the inductance value is significantly different from the value on the specification sheet, it means there may be a problem with the inductor.

3. Check for short circuit: Use a multimeter to check whether there is a short circuit in the inductor. If there is a short circuit, the inductor may be damaged.

4. Check the insulation performance: Use a test pen or the insulation test function of a multimeter to check whether the insulation performance of the inductor is good. If the insulation performance is poor, it means there may be a problem with the inductor.

5. Measure the resonant frequency: Use a signal generator and an oscilloscope to measure the resonant frequency of the inductor. If the frequency deviates from the expected value, there may be a problem with the inductor.

In summary, the quality of the inductor can be preliminarily judged through the above methods. If it is confirmed that there is a problem with the inductor, the inductor needs to be replaced.

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