1-3 1 ATX Explained
Key Concepts
- ATX Form Factor
- Power Supply Unit (PSU)
- Motherboard Compatibility
- Cooling and Ventilation
- Expansion Slots
ATX Form Factor
The ATX (Advanced Technology eXtended) form factor is a standard specification for desktop computer cases and motherboards. It was introduced by Intel in 1995 and has since become the most common form factor for desktop computers. The ATX standard defines the physical dimensions, layout, and connectors of the motherboard and case, ensuring compatibility between different components.
Power Supply Unit (PSU)
The Power Supply Unit (PSU) in an ATX system converts AC power from the wall outlet into DC power required by the computer components. ATX PSUs are designed to fit into the standard ATX case and provide various power connectors, including 24-pin and 8-pin motherboard connectors, SATA power connectors for storage devices, and PCIe power connectors for graphics cards.
Motherboard Compatibility
ATX motherboards are designed to fit into ATX cases and have specific layout and connector placements. This ensures that all components, such as the CPU, RAM, storage devices, and expansion cards, can be properly installed and connected. The ATX standard also defines the placement of mounting holes for the motherboard, ensuring that it can be securely installed in the case.
Cooling and Ventilation
ATX cases are designed with cooling and ventilation in mind. They typically include space for multiple fans, such as intake and exhaust fans, to ensure proper airflow and cooling of the internal components. The ATX standard also defines the placement of fan mounts and vent holes, ensuring that the case can be effectively cooled.
Expansion Slots
ATX motherboards include multiple expansion slots, such as PCIe slots for graphics cards, sound cards, and other expansion cards. The ATX standard defines the placement and spacing of these slots, ensuring that multiple expansion cards can be installed and properly cooled. ATX cases also include space for expansion cards, ensuring that they can be securely installed and connected.
Examples and Analogies
Think of an ATX system as a standardized kitchen layout. Just as a kitchen has a standard layout for appliances, countertops, and cabinets, an ATX system has a standard layout for components like the motherboard, PSU, and expansion cards. This standardization ensures that all components fit together seamlessly and function efficiently.
Another analogy is a modular furniture system. Just as modular furniture pieces can be easily assembled and rearranged according to a standard design, ATX components can be easily installed and connected in a standardized manner, ensuring compatibility and functionality.