How to solve the current sound of Xiaoxin pro13

If you want to solve the current sound of this perl13, first of all, you have to see whether the power plug of the data cable and your mobile phone are plugged in, generally after plugging in, there should be no current sound, if there is current sound, you can get it to the after-sales service to test.

If there is a current sound of it, it may be caused by one of its interference, so it is necessary to deal with its corresponding signal well.

If you want to use this current, it's actually very easy to solve, especially for this small and fresh power supply.

If you want to take it to the after-sales store, it's actually quite dangerous to have an electric sound. To be on the safe side.

If you want to solve it, you can see if there is any problem with its battery, and then find its capacity and its output to make some adjustments.

If there is a current sound, then you can go directly to their after-sales service, I can just change a computer for you.

It's almost possible to solve the problem that the computer is too big and you want to operate it now.

I just checked it for you, and you can choose to denoise it in the volume settings.

These should be hardware problems, if you are not a professional person, you probably don't know how to operate.

It's usually a hardware failure.

It is recommended to go to the official after-sales inspection and repair.

Unplug the adapter and use the internal electricity to power it, if there is no sound, it is the vibration effect caused by the ripples of voltage or current.

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My little new notebook also encountered the "pleasant" current sound problem, after a variety of research, I found a method that worked for me, and I will share it with you below.

Lenovo Xiaoxin Pro13 Intel Core i5 Inch Full Screen Ultra Thin and Light Laptop (i5 16G 512G MX350 QHD)

Open PowerShell as an administrator and execute the following commandsReboot

If that doesn't work for you, you can go back to the original state with the following command:

The above command is that C2 and C3 with the CPU disabled are an energy-saving technology for the CPU. The CPU goes into a sleep-like state when there are few tasks, and recovers when there are tasks. c The higher the number after it, the deeper the sleep.

Disabling C-States prevents the CPU from causing a sharp change in frequency when it switches between sleep and wake, so there is no current sound. Theoretically,Disabling C-states only increases power consumption, but has no impact on performance。I didn't test this, but I didn't feel any slower when I used it normally.

For a detailed description of C-States, see:

For information on how Windows disables C-States, see:

Theoretically, the power consumption will increase, but the performance will not be affected.

The number of C-States varies depending on the CPU. I didn't find out how many C-states the CPU of Xiaoxin Pro13 has. I also couldn't find out how Windows 10 disables all C-States.