How Long Does it Take to Build a PC? A Detailed Breakdown

Last Updated: June 7, 2023By
Desktop PC on wooden desk

Whether you’re a gamer seeking the ultimate experience, a professional in need of high-level computing power, or a tech enthusiast intrigued by the world of hardware, building your own Personal Computer (PC) can be a highly rewarding endeavor.

Building a PC from scratch is akin to solving a complex puzzle, and in many ways, it’s a journey of discovery and learning. Not only does it offer you the chance to customize your PC according to your specific needs, but it also provides invaluable insights into the inner workings of this ubiquitous piece of technology.

However, one question that often arises for beginners is, “How long does it take to build a PC?” It’s a valid question—after all, most of us are busy and want to know how much time we’ll need to invest in this project.

The answer, as you might expect, varies greatly depending on various factors, including your level of expertise, the complexity of the build, and the components used.

Pre-Building Steps

Before you pick up a screwdriver or unbox your components, there’s a significant amount of preparatory work that goes into building a PC. This often overlooked part of the process is crucial in ensuring that your build goes smoothly, and that you end up with a machine that meets your needs and expectations.

We can break down these pre-building steps into two main phases: the Research Phase and the Purchasing Phase.

Research Phase

The first step in any PC building project is deciding what you want your PC to do. Are you building a gaming rig? A workstation for graphic design or video editing? Or maybe a general-purpose machine for everyday tasks? The answer will greatly influence the components you choose.

Time Spent in Deciding the PC’s Purpose: This can take anywhere from a few hours to a few days. This depends on your existing knowledge about PCs, the complexity of your needs, and the amount of time you’re willing to invest in understanding various components and their performance implications.

Identifying Suitable Components: Once you have a clear idea of your PC’s intended purpose, you’ll need to choose the components that will make up your build. This involves researching CPUs, GPUs, motherboards, RAM, storage, power supplies, and cases, ensuring they’re compatible, and that they’ll meet your performance needs.

For beginners, this step could take several days to a week or more, as you’ll likely be learning a lot of new information.

Purchasing Phase

After your research is done, it’s time to shop.

Estimated Time to Find, Compare, and Buy Components: It could take you a couple of days to find the best prices, compare deals, and finally make your purchases. This also includes the time taken to double-check compatibility and confirm the specifications of the components.

Delivery Wait Times: This can vary greatly depending on where you live, where you’re ordering from, and the shipping options you choose. It could be as short as a day or two, or it could take a week or more.

By taking the time to thoroughly complete these pre-building steps, you can ensure that when you finally start building, you’ll have all the right components at your disposal, and you’ll know exactly how they fit together to create your ideal PC.

Understanding PC Components

The heart of your computer lies within its components. These are the building blocks that determine your PC’s functionality, performance, and purpose. A clear understanding of each component, its role, and compatibility with other parts is crucial to a successful PC build.

Let’s delve into the key components that make up a typical PC.

Explanation of Key Components and Their Roles

CPU (Central Processing Unit): The CPU is often referred to as the brain of the computer. It executes most of the instructions from the computer’s hardware and software. Your choice of CPU affects everything from how many tasks your computer can handle simultaneously to how well it performs in specific applications like gaming or multimedia editing.

Motherboard: The motherboard is like the central nervous system of the computer; it connects all the components and ensures they can communicate with each other. When choosing a motherboard, you must consider its compatibility with the CPU, the type and amount of RAM it supports, and the number of expansion slots it offers.

RAM (Random Access Memory): RAM temporarily stores data that the CPU uses, making the retrieval of this data faster and more efficient. More RAM typically means smoother multitasking and faster load times for applications.

GPU (Graphics Processing Unit): The GPU, also known as a video card, is responsible for rendering images and videos, and it’s crucial for gaming and graphic design. It has its own processor and RAM to handle graphical data independently of the CPU.

PSU (Power Supply Unit): The PSU supplies electricity to each of the components in your computer. It’s important to choose a PSU with enough capacity to handle your system’s power draw and potential future upgrades.

Storage: Your storage options include HDDs (Hard Disk Drives) and SSDs (Solid State Drives). SSDs are faster but more expensive per gigabyte, while HDDs offer more storage for your money but are slower.

Case: The case houses all of your components. It not only impacts the aesthetics of your build but also affects airflow and the type and number of components you can install.

Importance of Compatibility and Correct Installation

Desktop PC on white desk

Understanding how these components interact is critical when building your own PC. For example:

RAM and Motherboard Compatibility: The type and speed of RAM you can install depends on what your motherboard supports.

CPU Socket Matching: CPUs and motherboards must have compatible sockets. An incompatible pairing will mean the CPU physically won’t fit onto the motherboard.

The Assembly Process

With all your components ready and a solid understanding of their functions, it’s time to embark on the exciting journey of assembling your PC. While it may initially seem intimidating, taking each step with patience and care will ensure a successful and enjoyable build. Here’s a step-by-step breakdown of the process:

Detailed Breakdown of Assembly Steps and Estimated Time for Each

Preparing the Case: This involves unboxing your case, removing the side panels, and familiarizing yourself with the layout. This should take around 15-30 minutes.

Installing the Power Supply (PSU): The PSU is generally installed at the bottom or the top of the case. Ensure it’s firmly secured and that the fan is oriented correctly. This should take about 10-15 minutes.

Mounting the Motherboard: Before you mount the motherboard into the case, it’s often easier to install the CPU, CPU cooler, and RAM. After these are in place, you can carefully place the motherboard into the case, aligning it with the standoffs. This process can take up to an hour.

Installing the CPU: Handle the CPU very carefully to avoid damaging the pins. Align it correctly with the socket on the motherboard, drop it in gently, and secure it with the lever. This should take about 10-15 minutes.

Installing RAM: Locate the RAM slots on your motherboard, open the clips, and push the RAM sticks into place until the clips close. This should take no more than 5-10 minutes.

Installing the GPU: The GPU is installed into a PCI-E slot on the motherboard. Remove the corresponding case brackets, insert the GPU into the slot, and screw it into place. This can take about 15-20 minutes.

Adding Storage: SSDs or HDDs are usually installed in dedicated drive bays or mounts in the case. Once they’re secured in place, they need to be connected to both the PSU and the motherboard. This can take about 15-30 minutes.

Connecting Everything Up: This involves plugging in all the power cables from the PSU to the components and connecting any case cables (like power switch, reset switch, LED light cables) to the motherboard. This can take around 30-60 minutes.

Cable Management: Finally, take the time to tidy up your cables. Good cable management not only improves the aesthetics of your build but also promotes better airflow. This could take anywhere from 15 minutes to an hour, depending on your level of meticulousness.

Common Issues and Troubleshooting During Assembly

It’s not uncommon to encounter minor hiccups during the assembly process. Understanding how to identify and troubleshoot these issues will be covered, along with typical problems such as incorrect wiring, faulty connections, or improperly seated components.

Importance of Patience and Meticulousness

The assembly process is where patience truly becomes a virtue. Rushing through the build can lead to mistakes, some of which could potentially damage your components. 

By taking your time and following the instructions meticulously, you’ll end up with a well-built machine that’s ready for action.

Installing the Operating System and Drivers

Desktop PC turned on

Once your PC is assembled, you’re ready for the next phase—installing the operating system (OS) and necessary drivers. This phase breathes life into your hardware, transforming your carefully assembled components into a fully functioning computer. Here’s how to go about it:

Choosing an Operating System

The OS manages all software and hardware on the computer. There are various operating systems available, but for most personal computers, Windows is the most commonly used.

Other alternatives include macOS (for Apple computers) and Linux. The choice of OS largely depends on your personal preference, the software you intend to use, and your budget.

Installation Process and Time

To install the OS, you will typically need a bootable USB drive with the installer for the operating system of your choice. The entire installation process can take anywhere from 20 minutes to an hour, depending on the speed of your USB drive and the specific OS being installed.

Boot from the Installer: Insert your bootable USB into a USB port on your new computer, then start the computer and enter the BIOS (usually by pressing a key such as F2, F10, or Delete as the computer starts up). In the BIOS, set the boot priority to boot from the USB drive first.

Follow the On-Screen Instructions: The OS installer will guide you through the process. You’ll be asked to accept the terms of the license agreement, choose the hard drive where the OS will be installed, and set up a user account.

Downloading and Installing Necessary Drivers

After the OS installation, your computer might not be running optimally yet. You’ll need to install drivers, which are software that allow your operating system to communicate with your hardware.

This could take another hour or two, depending on your internet speed and the number of drivers you need to update.

Motherboard Drivers: Visit the website of your motherboard’s manufacturer, find your specific model, and download the latest drivers.

GPU Drivers: Go to the website of your GPU’s manufacturer (either NVIDIA or AMD for most users) and download the appropriate drivers.

Peripheral Drivers: If you have peripherals (like a gaming mouse or a printer) that need specific drivers, download them from the manufacturer’s website.

Once your operating system is installed and all drivers are updated, you are one step closer to having a fully operational, custom-built PC. The final stages involve initial system checks and fine-tuning your setup, which we’ll cover next.

Post-Build Steps

Congratulations! Your new computer is assembled and the operating system is installed. But before diving into using your PC, there are a few final steps to take to ensure that everything is functioning as it should.

This phase involves initial system checks, potential troubleshooting, and system optimization for the best performance.

Initial System Checks

These checks are essential to ensuring your hardware is correctly recognized and functioning as expected.

BIOS Settings: Enter the BIOS (Basic Input/Output System) when your computer boots. You can usually do this by pressing a specific key (such as F2, F10, or Delete) during startup. Once in the BIOS, verify that all your components—CPU, RAM, storage drives—are correctly recognized.

Hardware Recognition: After your first login to your new OS, check that all hardware is recognized and functioning correctly. On Windows, you can use the Device Manager to do this. It should display all your components without any warning signs.

Stress Testing and Benchmarking

Stress tests and benchmarks help confirm that your components are working correctly under load and that they’re performing as expected. There are various free tools available online for stress testing your CPU, GPU, and RAM, such as Prime95, FurMark, and MemTest86.

Troubleshooting any Potential Issues

If you encounter issues during your initial system checks or stress tests, you may need to do some troubleshooting. This could involve reseating or replacing components, checking power cables, or updating your BIOS.

The process for these post-build steps can take anywhere from a couple of hours to a full day, depending on any potential issues encountered.

Once all these steps are complete, your custom-built PC is ready to go! It’s a testament to your patience, diligence, and learning throughout the process. Now it’s time to reap the rewards of your hard work and start using your PC for gaming, productivity, creativity, or whatever you built it to do.