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How to find compatible computer parts online

Updated March 15, 2024

Building your own computer or upgrading your existing system can be a dream or a nightmare. Simply finding parts that are compatible with each other can be challenging. But some really helpful websites can make finding the correct parts easy.

How to find compatible computer parts online

There is no greater satisfaction than being able to say you built or upgraded your computer yourself. Whether upgrading your computer's memory or drive or building a new system from the ground up.

However, finding compatible computer parts can be daunting. Every part has a specific set of requirements and features, and it's essential to ensure they match up with the other components in your build.

For example, a CPU requires a specific type of motherboard socket, and each motherboard supports particular types of memory. It's essential to cross-check each component's specifications before purchasing to ensure compatibility.

If you're working on an older PC, say five to ten years old, you will have to use the different component specifications to find compatible parts. When looking for parts to upgrade an older computer, the best place to start is the motherboard/system manual. This is where you find all the specifications for finding compatible components for your computer.

If you are considering upgrading a relatively new computer or building a new one, the following websites are extremely helpful. Just enter a few details on your component or computer, and they can tell you what hardware will work with it.

When it comes to finding compatible computer parts, the websites are divided into two categories: complete computers /separate components and memory.

Complete computers / separate components

Let's start with websites that can help you find every part of a custom-built computer. Several websites will list components that work together, but only a few genuinely allow you to customize the different components.

The following websites allow you to select any component (motherboard, processor, etc.) and assemble a list of compatible parts for a complete system. You can also use them to find compatible parts to upgrade your existing computer.

PC Part Picker

Build My PC

PC Builder

PC-Builder.io

Another website is Newegg. It has a section specifically for custom PC building, similar to the ones above. The only difference is that it links to products it or its affiliates sell.

The PC Part Picker, Build My PC, PC Builder, PC-Builder.io, and Newegg websites can also help find individual components. As long as the manufacturer still sells the component, you can use any of these websites to find compatible parts for your computer.

Let's say you recently built a computer and want to upgrade the processor. You would have to find your specific motherboard, and these websites will show you what processors are compatible with it.

Memory

But as I always say, the biggest bang you can get for your buck is a memory upgrade. Most memory manufacturers have what they call memory finders. Just find your computer's or motherboard's make / model; their websites will show you which memory modules will work in it.

Crucial

Kingston

Corsair

Newegg

CDW

FYI - If you are trying to get the lowest price on a component, you can check a vendor's website to see if they match prices. I have used price matching to get some terrific deals on hardware.

Please let us know if you found a website with a computer parts configurator we have not listed. Just leave a note in the comments at the bottom of this article.

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