How to build a PC!

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Perhaps you've only ever used prebuilt desktops, or relied on a laptop. But if you always thought that building your own desktop PC was beyond you, take heart: If you have the confidence to wield a screwdriver and follow basic instructions, you can do it. Indeed, putting together a PC these days is not entirely unlike assembling IKEA furniture. The most rewarding part is that, unlike with that blondwood bookcase, you get to select the right parts to go together and make it your own.

https://www.pcmag.com/how-to/how-to-build-a-pc-the-ultimate-beginners-guide

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Additionally, if you are upgrading the CPU I recommend clearing the CMOS before installing it!