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What is a HDMI Motherboard?

A HDMI motherboard is a central circuit hub that includes a High-Definition Multimedia Interface (HDMI) port, allowing for high-quality video and audio output to displays and TVs. It's a key feature for seamless streaming and gaming experiences. Curious about how this technology can elevate your home entertainment setup? Let's dive deeper into the world of HDMI motherboards.
Jeremy Laukkonen
Jeremy Laukkonen

An HDMI&reg motherboard is a motherboard that is equipped with a High-Definition Multimedia Interface (HDMI&reg) port. HDMI&reg is a standard that can allow high-definition video and high-quality audio to be transmitted via the same cable. This can allow a computer with such a motherboard to be connected to a variety of monitors and televisions without requiring a secondary audio cable. HDMI&reg motherboards can be found in both desktop and laptop computers, and many monitors and televisions come equipped with one or more HDMI&reg ports.

Many motherboards contain basic audio and video functions, doing away with the need for a dedicated video or sound card. This is especially true with budget-priced laptops in which both space and price concerns can lead to the use of integrated graphics. A motherboard with integrated graphics is simply a motherboard that has a video card embedded on it and, thus, has an HDMI&reg port, VGA port or both.

The HDMI® logo.
The HDMI® logo.

While integrated graphics often don't have the power to run resource-intensive games, they can be sufficient for lighter uses. Many televisions come equipped with HDMI&reg ports, and a computer with an HDMI&reg motherboard may use a television as a monitor. This can allow high-definition Internet video and other media to be viewed on a large screen without an expensive video card. It can also allow the computer to be connected to a television or monitor via a single cable for both audio and video.

A computer motherboard.
A computer motherboard.

While early computer monitors traditionally had only one VGA input, many displays now can be found with multiple HDMI&reg inputs. This can allow a single display to be used with many different video sources, including a computer equipped with an HDMI&reg motherboard. HDMI&reg is fully backward compatible with two of the three Digital Video Interface (DVI) types. This means that a computer with an HDMI&reg motherboard and an adapter can connect to the DVI port of a display that lacks HDMI&reg ports. While DVI doesn't support audio input, using an HDMI&reg-to-DVI adapter won't result in any loss of video quality.

If a computer has a dedicated video card, an HDMI&reg motherboard is unnecessary. When a system built with an HDMI&reg motherboard is upgraded with a dedicated video card, the HDMI&reg port on the motherboard simply stops working. An HDMI&reg video card may provide all the same useful functionality of an HDMI&reg motherboard while also being able to run more graphically intensive programs and games.

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    • The HDMI® logo.
      By: Mike Rosenberg
      The HDMI® logo.
    • A computer motherboard.
      By: VIA Gallery
      A computer motherboard.