OHMYPC Learning Center

The Ultimate Guide to
Building Your Own PC

From planning to assembly, learn everything you need to create your perfect custom computer

Expert Guidance

Step-by-step instructions from PC building professionals with years of experience

Compatibility Focused

Learn how to select parts that work together for a seamless building experience

Budget Friendly

Recommendations for all price points, from entry-level to high-end enthusiast builds

INTRODUCTION

Why Build Your Own PC?

Welcome to the exciting world of PC building! Creating your own computer might seem daunting at first, but it's a rewarding experience that offers several advantages over buying a pre-built system. You get complete control over the components, often better value for your money, and the satisfaction of creating something uniquely yours.

This guide is designed for beginners and will walk you through the essential steps, from planning your build to selecting components. By the end, you'll have a better understanding of the entire process.

Before You Begin

Building a PC requires patience and attention to detail. Take your time with research and assembly. If you're ever unsure, our compatibility checker can help you avoid costly mistakes.

What You'll Learn

  • How to determine the right components for your specific needs
  • Understanding compatibility between different parts
  • Balancing performance and budget considerations
  • Tips for future-proofing your build
STEP 1

Define Your Purpose and Budget

Before you even think about specific parts, the most crucial first step is figuring out what you will use the PC for and how much you're willing to spend. These two factors will heavily influence every component choice you make.

Gaming PC

High performance for modern titles

  • Focus on powerful GPU and responsive CPU
  • 16GB+ RAM recommended
  • Fast SSD for game loading

Content Creation

For video editing & design work

  • Multi-core CPU priority
  • 32GB+ RAM for large projects
  • Multiple high-capacity storage solutions

Setting Your Budget

Once you know the purpose, set a realistic budget. PC build costs can range from a few hundred dollars for basic systems to several thousand for high-end gaming or workstation rigs.

Budget Allocation Guideline

Graphics Card (Gaming)30-40%
CPU20-25%
Motherboard10-15%
RAM10-15%
Storage10-15%
Power Supply5-10%
Case & Cooling5-10%

*Percentages vary based on use case. For content creation, CPU and RAM typically get a larger allocation.

STEP 2

Understanding Core Components

Now that you have a purpose and budget, let's introduce the main parts of a computer and what they do. We'll dive deeper into selecting each one in later steps.

CPU

The "brain" of your computer that processes instructions and performs calculations

GPU

Renders images and handles graphics processing, crucial for gaming and visual work

Motherboard

The main circuit board that connects all components together

RAM

Temporary memory that stores data your computer is actively using

Storage

Long-term data storage for your operating system, applications, and files

Power Supply

Converts electricity from your wall outlet to power your components

Case

Houses and protects all your components while providing airflow

Cooling

Keeps components from overheating during operation

Understanding how these components work together is key to building a well-balanced system. Each part plays a crucial role in the overall performance and reliability of your PC.

STEP 3

Choosing CPU & Motherboard

The CPU and motherboard are tightly linked, as they must be compatible in terms of socket and chipset. Start with the CPU based on your needs and then find a compatible motherboard.

Choosing a CPU

The Central Processing Unit is the brain of your computer. Here's what to consider:

  • Core Count: More cores handle multiple tasks better
  • Clock Speed: Higher GHz means faster processing
  • TDP: Thermal Design Power affects cooling needs
  • Socket: Must match your motherboard (AM5, LGA 1700, etc.)

Choosing a Motherboard

The motherboard connects all your components. Key considerations include:

  • Form Factor: ATX, Micro-ATX, or Mini-ITX
  • Chipset: Determines features and expansion options
  • Memory Support: DDR4 vs DDR5, max capacity
  • Expansion Slots: PCIe slots for graphics cards and other components

For general use, an entry-level CPU like an Intel Core i3 or AMD Ryzen 3 may suffice. For gaming or productivity, mid- to high-end CPUs (e.g., Ryzen 5, Ryzen 7, Intel Core i5, i7) are recommended.

Pro Tip: CPU & Motherboard

Always check the motherboard's CPU compatibility list on the manufacturer's website before purchasing. Some older motherboards may require a BIOS update to work with newer CPUs.

STEP 4

Selecting Memory (RAM)

Decide on the right type, amount, and speed of memory for your needs. We'll cover more detailed information for this component in our expanded guide.

This section will be expanded in the complete guide. In the meantime, try our PC Builder tool to explore compatible Memory options for your build.

Try PC Builder Tool
STEP 5

Storage Solutions

Balance performance and capacity with the right storage configuration. We'll cover more detailed information for this component in our expanded guide.

This section will be expanded in the complete guide. In the meantime, try our PC Builder tool to explore compatible Solutions options for your build.

Try PC Builder Tool
STEP 6

Power Supply Selection

Ensure reliable power delivery with the appropriate PSU for your system. We'll cover more detailed information for this component in our expanded guide.

This section will be expanded in the complete guide. In the meantime, try our PC Builder tool to explore compatible Supply options for your build.

Try PC Builder Tool

Ready to Start Building?

Now that you understand the basics of PC components, it's time to plan your build. Use our interactive PC builder to select compatible parts and create your perfect system.