This article provides a comprehensive guide for those who wish to build their own computer from scratch. It covers the process of choosing components, paying attention to their balance and dimensions, and then moves on to the assembly phase. The article offers tips on applying thermal paste, using force appropriately during assembly, pre-assembling the kit before installation, and using suitable cooling systems. It also warns against common mistakes such as saving screws and not considering the Thermal Design Power (TDP) of the processor when choosing a cooler.