What To Know
- By considering the standard size and variations available, you can choose the motherboard that best meets your needs and fits seamlessly into your computer case.
- Can I use an ATX motherboard in a micro ATX case.
- Can I use an ATX motherboard in a Mini-ITX case.
When building a custom PC, understanding the dimensions of your motherboard is crucial. ATX motherboards are a popular choice due to their versatility and wide compatibility. But how big are they exactly? This comprehensive guide will delve into the measurements of ATX motherboards, providing you with all the necessary information to make informed decisions for your PC build.
The Standard ATX Motherboard Size
The ATX form factor, introduced in 1995, has become the industry standard for full-sized motherboards. ATX motherboards adhere to specific dimensions, ensuring compatibility with most computer cases and components.
The standard ATX motherboard size is 305mm (12 inches) wide and 244mm (9.6 inches) deep. This rectangular shape allows for ample space to accommodate various components, including the CPU socket, expansion slots, and memory banks.
Variations in ATX Motherboard Sizes
While the standard ATX size remains prevalent, there are variations that cater to specific needs. These include:
- Extended ATX (EATX): Larger than standard ATX, EATX motherboards offer additional expansion slots and support for more powerful CPUs.
- Micro ATX (mATX): Smaller than standard ATX, mATX motherboards are designed for compact builds while still providing essential functionality.
- Mini-ITX: The smallest ATX variant, Mini-ITX motherboards are ideal for ultra-small form factor (SFF) builds.
Measuring an ATX Motherboard
To measure an ATX motherboard accurately, follow these steps:
1. Use a Ruler or Measuring Tape: Place the ruler or measuring tape along the edges of the motherboard, excluding any protrusions or screw holes.
2. Measure Width: Measure the distance between the left and right edges of the motherboard.
3. Measure Depth: Measure the distance between the top and bottom edges of the motherboard.
ATX Motherboard Size Compatibility
ATX motherboards are designed to fit into ATX-compatible computer cases. These cases provide the necessary mounting points and space to accommodate the motherboard’s size. However, it’s important to check the case specifications before purchasing to ensure compatibility.
Factors Affecting ATX Motherboard Size
Several factors influence the size of ATX motherboards:
- Number of Expansion Slots: More expansion slots require additional space on the motherboard.
- CPU Socket Type: Different CPU sockets have varying dimensions, affecting the overall motherboard size.
- Chipset: The chipset used on the motherboard can also impact its size, especially if it incorporates integrated features.
Final Note: Embracing the Right Size for Your Build
Understanding the dimensions of ATX motherboards is essential for planning and executing a successful PC build. By considering the standard size and variations available, you can choose the motherboard that best meets your needs and fits seamlessly into your computer case. Remember, the right size motherboard ensures optimal performance and compatibility, unlocking the full potential of your custom PC.
Questions We Hear a Lot
Q: What is the smallest ATX motherboard size?
A: Mini-ITX motherboards are the smallest ATX variant, measuring 170mm x 170mm.
Q: Can I use an ATX motherboard in a micro ATX case?
A: No, ATX motherboards will not fit into micro ATX cases due to their larger size.
Q: What is the difference between ATX and EATX motherboards?
A: EATX motherboards are larger than ATX motherboards and offer more expansion slots and support for high-end CPUs.
Q: How do I measure the depth of an ATX motherboard?
A: Measure the distance between the top and bottom edges of the motherboard, excluding any protrusions or screw holes.
Q: Can I use an ATX motherboard in a Mini-ITX case?
A: No, ATX motherboards are too large to fit into Mini-ITX cases.
