Types of Motherboard – Which You Should Know

Here are a few most common interfaces and components you’ll see on motherboards:

The CPU socket is where the unit that is centrally processed

DIMM slots that house the RAM

SATA connector that connects to the hard drive.

Connector for power to plug into the power supply


Connector for Floppy

IO Chip

Many types of fan connectors for connecting cooling fan

IO connectors

USB ports

Audio connector

IDE connector

The header of a CMOS battery

PCI express slots can be used for a variety of items like graphics cards or sound card

PCI slots

ROM to store the boot program Boot program

Clock generator for synchronizing components

Slots for expansion

They are usually constructed from aluminum, redirecting heat away from electronic components to avoid damage.

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Every computer comes with a motherboard. It is common to see the kind of motherboard a particular computer comes within its specifications. The motherboard type determines the type of component your computer will be able to use as well as the limitations for upgrading your computer shortly.


Refurbished Dell motherboards also have a particular dimension of shape, shape, layout, and mounting hole configuration. If you’re designing computers you must be aware of them as well, since computers are built to work with specific motherboard sizes.

The form factor of motherboards in various types:

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Tablets, laptops, desktops, smartphones, and various kinds of computers all come with motherboards, however, when we talk about Dell motherboards, we’re talking about the ones designed for desktop computers. Desktop computers’ motherboards adhere to guidelines known as form factor to ensure that computer makers know what size case they require to build, the kind of CPU they should use, and the type of peripheral components required to construct a computer that meets specific specifications.

Here are a few most common motherboard types:

XT Motherboard

This was the very first motherboard type and was shortened to eXtended Technology. These aren’t common nowadays unless you’re working with older computers. IBM invented it in 1983 and since IBM released the specifications and released them to the public to manufacturers, several companies used it as an industry standard. The motherboard was 32 pounds. It was created to be used by businesses.

AT Motherboard

It is believed that the AT design was developed by IBM. AT is a short form of Advanced Technology. It was a smaller size and appeared similar to the motherboards that we are familiar with. It was the standard design for computers in the 1980s. The motherboard is also referred to by the name Full-AT.

The AT motherboard was 12×38 inches, meaning it isn’t suitable for a mini-desktop which must have a footprint that is no more than eight-by-8 inches. The dimensions of the motherboard meant it was difficult to install new drives as well as access the different connectors. For motherboards that are this type that have six-pin connectors, they are utilized as power connectors. Since the sockets for power connectors are hard to identify most users are unable to connect their devices correctly and end up causing damages.

AT motherboards had parallel and serial ports that were connected to the case using an expansion slot. They also used cables for connection to the motherboard. Parallel ports are not found on modern motherboards. They also included a single keyboard connector which was attached to the reverse of the card. The processor was located inside of the board, and occasionally could be in the way of expansion slots. Its SIMM slot for memory can be located in different locations on this type of board, however, they are typically located on one of the boards’ tops.

This motherboard worked well for users beginning with the time of the Pentium P5 up to that it was replaced by the Pentium 2. It was built to work with an Intel 80386 architecture, which went out of fashion with its introduction to Pentium 2. Pentium 2. It was discontinued by IBM in 1995.

Baby AT Motherboard

This motherboard was a variation from this AT motherboard. It was known as “baby” because it was smaller than the standard AT motherboard. It was 8.5-by-13 inches. However, the dimensions could differ between different manufacturers. The smaller dimensions of this motherboard made it more convenient for the technicians who worked on it because there was more space within the case. Apart from that, it came with the same characteristics similar to the typical AT motherboard.

ATX Motherboard

Intel launched its ATX motherboards during the late 1990s as an improvement over the AT motherboards that were in use in the past. These motherboards distinguish themselves from AT counterparts as they permit interchangeability between the parts that are connected. Furthermore, since these motherboards’ dimensions are less than AT motherboards they have enough room for drive bays. The connector system of this board was also upgraded. In the rear plates on AT motherboards, slots were created for various options.


After you’ve learned about motherboards, including old models which are no longer used and you’ve got an idea of what you can build your ideal PC or the IoT device. They have advanced from the original IBM XT board. The choice of the best motherboard is an essential element of building your computer. A well-built motherboard will be used for many years and will go through many updates so long as you plan for it. You can upgrade your CPU, add memory or upgrade your GPU, increase the number of hard drives you have, and make other modifications as technology advances. The extent of your upgrades will depend on the motherboard you choose.

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