Microphone in front of computer case

What is the MIC SPK interface on the front of the computer case and what is it used for?

Expand the power supply line of the hardware. The mic interface is the microphone interface. If you have a headset, just connect the microphone to this port.

General sound cards usually have four interfaces: LINE OUT (or SPK OUT), MIC IN, LINE IN and joystick (external MIDI device interface). Among them, the LINE OUT interface is used to connect external speaker equipment, such as speakers or headphones, to realize the sound playback function. The MIC IN interface is used to connect a microphone to achieve the recording function. In this way, the user can input sound signals into the computer through the sound card, or output the sound on the computer to an external device. The existence of these four interfaces allows the sound card to meet different audio needs, providing good sound quality and user experience whether it is audio playback or recording.

Extended information:

Precautions:

In order to ensure a good working environment for the computer, we need to pay attention to the following points. First of all, the working temperature should be between 10-35 degrees Celsius and the humidity should be between 30-80 percent. This can prevent damage to the computer caused by excessive temperature or humidity. In summer, we must pay special attention to heat dissipation and ventilation, and avoid using the computer for a long time at high temperatures to avoid overheating and causing computer failure. In winter, we need to pay attention to antifreeze, because computers are actually afraid of cold. If the computer is not used for a long time, especially in humid seasons, it is recommended to turn it on regularly to prevent damage to the computer caused by moisture. In addition, we also need to ensure that the AC voltage is around 220V to prevent excessively high or low voltage from adversely affecting the computer. To sum up, through the above

Therefore, choosing a corner of the study or bedroom to place items away from the window can reduce the adhesion of dust to a certain extent.

Reference source: Encyclopedia-Computer Chassis

Reference source: Encyclopedia-MIC

What to do if there is no audio on the front of the chassis|How to solve the problem of no sound from the front socket of the chassis

In fact, this kind of problem does not happen often. It usually only appears suddenly after reinstalling the system. Of course, we cannot rule out the possibility that the computer will lose your temper or cause problems in individual cases. Next, I will share an example that happened around me where the front audio of the chassis had no sound. I hope it will be helpful to everyone.

Fault phenomenon

Some time ago, my neighbor excitedly purchased a pair of headphones with a microphone in order to facilitate voice chat online. Because the computer case comes with a front-end audio interface, after consulting the editor about the specific connection method, I went home and tried it myself. However, I got a call shortly afterwards saying that both the headset and the microphone were not working properly.

Fault analysis and solution

The editor hurried to his home and first checked whether the small speaker icon representing the audio device under the desktop taskbar was normal, and made sure that the volumes inside were not set to mute.

Then click Start→Control Panel→Sound and Audio Device Properties to confirm that the sound card driver has been installed normally and other settings are normal.

This first eliminates the possibility of causing malfunctions in terms of software settings. Because the neighbor’s computer has not been equipped with speakers since it was purchased, and the default audio device of the system is generally Rear Audio, so the editor connected the newly purchased headphones and everything worked normally after testing. But once connected back to the audio jack on the front of the chassis, nothing happens.

The motherboard of my neighbor's computer is Gigabyte's KT880. Fortunately, the motherboard manual is still there. After checking, it turns out that there are relevant settings, and the motherboard instructions specifically point out: If the front audio jack is used, pins 5, 6, 9, 10 must be removed and short-circuited. jumper cap so that the output signal goes to the front audio port. The cause of the failure really seems to be clear. Unplug the corresponding jumper cap and the fault is solved satisfactorily.

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