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HomeElectronicsMotherboard Audio Ports | A Full Newbie’s Information

Motherboard Audio Ports | A Full Newbie’s Information

We reside in an expressive world the place audio and video play an essential function. In computer systems, sound helps the consumer with a superb multimedia expertise. You possibly can take heed to songs, watch motion pictures or TV Exhibits, or some other on-line content material. Sound in computer systems additionally helps in troubleshooting any issues (with error tones). So, on this information, we determined to cowl every part that you must learn about Motherboard Audio Ports.

What’s the Goal of Motherboard Audio Ports?

Sound from a pc is essential to customers in addition to technicians. Whereas customers use sound to take heed to music or file it, technicians use it to establish the issue.

On most private computer systems, a particular audio circuit generates the sound. When you dial the time again to a few many years in the past, PCs on the time had devoted growth boards referred to as “Sound Playing cards”.

These playing cards comprise all of the audio circuitry that the pc wants to supply the sound.

However most fashionable PCs have the “audio” circuit constructed proper into the motherboard. The job of those devoted sound playing cards or built-in audio circuits is to generate {the electrical} indicators which can be accountable to supply sound.

That is the place motherboard audio ports come into the image. {The electrical} indicators from the audio circuitry terminate on the audio ports (both on the motherboard or on the sound card).

We are able to join audio system, headphones, and so on. to those audio ports and listen to the audio. You could find audio ports on the entrance in addition to the rear of a private pc.

Totally different Sorts of Motherboard Audio Ports

An understanding of various kinds of Motherboard Audio Ports is essential to arrange your sound system.

The 4 frequent varieties of Audio Ports on a contemporary motherboard are:

  • 3.5mm Audio Jacks
  • Optical S/PDIF Port
  • Coaxial S/PDIF Port
  • 6.35mm Audio Jack

Allow us to see extra particulars about these three audio ports on a typical motherboard.

3.5mm Audio Jacks

One of many fashionable and most typical varieties of motherboard audio ports is the three.5mm jack. We use them to attach headphones as audio system. These ports settle for the broadly fashionable 3.5mm TRS Audio Connector.

Most motherboards have at the very least three 3.5mm jacks within the colours Inexperienced, Blue, and Pink.

On this, the Inexperienced 3.5mm Audio Port is named the Line Out Port. That is the principle audio port for connecting two-channel (stereo) headphones or audio system utilizing a 3.5mm Audio Cable.

The Blue 3.5mm Audio Port is named Line In. We use this port to attach exterior audio gear corresponding to CD Gamers, Amplifiers, Sure Musical Devices, Audio Mixers, Microphones, and so on. to the pc.

We principally use this port to attach audio sources to the PC.

The final “fundamental” port on a motherboard is the Pink 3.5mm Audio Port. It is named Mic In, which is brief for Microphone In.

Because the identify suggests, we use this port to attach microphones to the pc. Despite the fact that the Line In Port accepts a Microphone, the amplification degree of the particular Mic In Port or the Pink Port is a lot better

Whereas these are the three fundamental 3.5mm Audio Ports, some motherboards have as much as three extra ports, making it a complete of six 3.5mm Audio Ports.

These three extra ports assist you to arrange a encompass sound system. The colour codes of those ports are Orange, Black, and Grey.

The Orange 3.5mm Audio Ports is named CS OUT or C/Sub Port. In a encompass sound setup, the middle channel acts as the principle vocal channel and a sub-woofer produces that tight and punchy low-frequency bass audio.

We use this Orange Port to connect with the middle channel in addition to the sub-woofer audio system.

Subsequent, we now have the Black 3.5mm Audio Port. It is named RS OUT or just Rear. In your encompass sound system, you need to join the rear audio system to this port.

Lastly, we now have the Grey 3.5mm Audio Port. This port is beneficial in case you are organising a 7.1 channel encompass sound system. In such a system, there will probably be two facet channels and we join these audio system to the Grey port.

The next picture reveals the six 3.5mm Audio Ports on a contemporary motherboard together with their colour codes and speaker configurations.

Surround Sound Ports

Some computer systems have entrance audio and the ports are Inexperienced and Pink. So, you may join your audio system or headphones in addition to a microphone within the entrance itself.


The three.5mm Audio Jacks we noticed earlier generate analog audio indicators. However with the rising recognition of digital audio, Sony and Phillips developed a brand new digital audio protocol referred to as the Sony Phillips Digital Interface or S/PDIF.

Utilizing S/PDIF, you may transmit multi-channel audio by means of a single cable. Talking of cable, there are two fashionable bodily media that carry S/PDIF indicators. They’re Optical and Coaxial.

The Optical S/PDIF makes use of a TOSLINK, which is brief for Toshiba Hyperlink, connector, and an optical fiber medium. Alternatively, the coaxial S/PDIF makes use of a coaxial cable and an RCA Connector.

As it will probably carry compressed 5.1 DTS or Dolby Digital Audio, the S/PDIF Port is appropriate in case you are setting a encompass sound system with the assistance of a single cable.

6.35mm Audio Jack

It is rather uncommon however some motherboards have a 6.35mm Audio Jack. This jack is appropriate when you have a high-quality residence or skilled audio gear.

What if the three.5mm Audio Ports are usually not Colour Coded?

These days, most motherboard producers are making their boards to enhance the appears and aesthetics of the PC. In consequence, some motherboards don’t have the common colour coded 3.5mm jacks.

As an alternative, you’ll discover them blacked out or in different colours to match the general construct of the motherboard.


Methods to discover out the ports if all of them are black in colour?

When you’ve got the motherboard’s consumer handbook, then look in there. Normally, motherboard producers describe all of the ports on the motherboard within the handbook to assist new PC builders.

Typically, even when all of the motherboard audio ports are black in colour, there will probably be a silkscreen (white paint) close to every port describing the identify or its image.


Audio performs an essential function in fashionable computer systems. Whether or not you might be utilizing high-quality headphones or organising a multi-channel encompass sound system, you want a fundamental understanding of all of the out there audio ports on a motherboard.

On this information, we noticed some generally out there motherboard ports together with the well-known 3.5mm Audio Ports in addition to the favored S/PDIF Port.

We additionally noticed the importance of every port and what kind of audio system go into every of these ports.



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