We recommend starting with the CPU because it determines most of your component choices. Your motherboard, RAM, and even your need for a graphics card all hinge on what CPU you choose. This is why choosing an Intel or AMD CPU is the first and most critical step of your PC building journey.
You can think of a form factor the same way you think about the size of a car. Just like a compact, mid-sized, or full-sized car, motherboards have similar sizes. Compact or small form factor PC's use Micro or Mini-ITX motherboards, mid-sized builds use ATX sized motherboards and, finally, full sized builds use E-ATX form factors.
When choosing the size of your PC here are some things to keep in mind. Small form factor PC's present some limitations on the components you can use in your PC and, given their size, introduce build challenges. ATX or mid-sized PCs are the most common builds and provide the largest compatibility options. They are also among the easiest PCs to assemble. Finally, E-ATX provides far more options and power but the size of the PC can be daunting and will take up a lot of space. This is often the most costly build option.
The amount of RAM your computer needs depends on what you plan on using it for. At a minimum we would recommend no less than 8GB of RAM, but if you are only using your PC for simple daily tasks, like web browsing, you might be able to get away with as little as 4GB. If you are gaming then 16GB is going to be the minimum and if you are streaming or video editing then 32GB is recommended. For more information on this, read our RAM buying guide on Newegg Insider.
PC building is no more difficult than completing a Lego set or building a piece of furniture given you have compatible components. There are so many amazing guides available on online on platforms like YouTube that will take you step by step through the pc builing process. We also recommend joining a PC community like the Newegg Discord that can help you answer questions as they may come up. For informaiton on this topics, we recommend you review our PC building guide and are familiar with the step-by-step process.
We recommend a number 2 phillips head screwdriver preferably magnetic. If you are going to build on carpet or in an area prone to static then an anti-static bracelet is also highly recommended. It is also a good idea to pick up thermal paste and some isopropyl alcohol as well. Finally, zip ties or velcro cable ties come in handy when you are managing cables.
At this time, we do not offer PC build kits. This tool is meant for you to custom build a PC using all the components we offer on Newegg.com.