Motherboard Form Factors - CompTIA A+ 220-1101 - 3.4
Understanding Motherboards
The Role of the Motherboard
- The motherboard is a fundamental component in computers, housing the CPU, memory slots, power connections, and expansion slots.
- Different motherboards come in various sizes to meet specific requirements; however, they generally share a basic layout with essential components.
Variability in Motherboard Sizes
- Power connectors on motherboards are standardized for compatibility across different systems. Selection often depends on case size and future expansion needs.
- There are over 40 types of motherboards, but only 2 or 3 are commonly used. Compatibility between cases is generally maintained.
Choosing the Right Motherboard
- Decisions about motherboard size depend on the intended use (e.g., media center vs. video editing). Understanding specific tasks helps in selecting appropriate motherboards.
- The COMPTIA exam focuses on two main motherboard families: ATX and ITX.
ATX vs. ITX Motherboards
- Standard ATX motherboards are prevalent in desktop computers due to their ample space for expansion slots and memory.
- Mini ITX motherboards cater to smaller systems, ideal for compact setups like those next to televisions.
Features of ATX and ITX Motherboards
- The ATX standard has been around since 1995 and remains popular for desktops; modern versions typically feature 20 or 24-pin power connectors.
- An example of an ATX motherboard is the ASUS Maximus 7-Hero, which includes multiple expansion slots and additional power connections near the CPU.
Installation Flexibility