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Pick a CPU and you only see motherboards with the same socket, from LGA 1150 to AM5 and LGA 1851. Pick the motherboard first and it works the other way round.
A matching socket isn't always enough. We check that the motherboard's chipset supports your processor's generation, across 78 chipsets.
DDR3, DDR4 or DDR5 is matched to your motherboard and processor, and you only see RAM kits with no more sticks than your board has slots.
ATX, Micro-ATX and Mini-ITX motherboards are matched to cases built to hold them, so your board actually fits.
Your build's estimated wattage adds up as you go, so you can choose a power supply with enough headroom.
Send a link to your parts list, or copy it as ready-made Reddit or forum markup to get feedback before you buy.
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PC Builder checks every part you add against the rest of your build: CPU socket and chipset generation, memory type and slots, and motherboard and case size. Pick a part and every list you open next only shows parts that fit.
Our compatibility rules cover 78 motherboard chipsets and every CPU socket in our catalog, from LGA 1150 to AM5 and LGA 1851, so you can build with confidence.
Guides to help you choose parts and build with confidence.
Answers to common questions about planning your build with PC Builder.
Yes. Planning, checking and sharing builds is free. We earn a small commission from Amazon when you buy through our links, at no extra cost to you.
Each time you add a part, the lists for the remaining categories only show parts that work with it: a matching CPU socket, a chipset that supports your processor's generation, the right memory type and number of RAM sticks, and a case that fits your motherboard.
Graphics card length against your case, CPU cooler height and power supply connectors aren't checked yet. Compare those with the manufacturer's specifications before you buy.
No. You can start a build straight away. Create a free account to save builds to your profile and keep a wishlist of parts.
Choose your country from the menu to get links to your local Amazon store. Prices are shown for the United States, United Kingdom, Canada and India.
Yes. Every build has its own link, and you can copy your parts list as Reddit or forum markup to post it and ask for advice.
Saved builds don't expire. You can open and edit them whenever you like.
Email us at [email protected] with the part's name or a link to it, and we'll add it.
Amazon changes prices often, sometimes several times a day. We update prices regularly, but the price on Amazon at checkout is the one that counts.
We add up the rated power use of your parts. Choose a power supply with some headroom above the estimate, especially for high-end graphics cards.
