To build your own personal computer, buy the necessary components, including the motherboard, processors, random-access memory and hard drive, from websites such as NewEgg.com or BestBuy.com, and complete the external and internal builds by slotting individual components into appropriate slots on the motherboard. Before proceeding with the building process, ground yourself by touching the metal part of the PC case, wear an antistatic wrist strap to prevent damaging the components accidentally and place the components on a nonconductive surface.
When buying a motherboard, make sure to select the model featuring appropriate sockets and slots for other components, and choose the form factor appropriate for the size of your PC case. Lift the protective cover from the CPU socket on the motherboard, and gently insert the processor by hovering over the socket and placing it all at once. Rotate the heat sink on the processor so that it’s close to the power connector on the motherboard. Place the RAM modules in the RAM slots, and push gently until they click into place.
Place the power supply unit inside the PC case, align it with the rear screw sockets, and use screws to secure it. Place the motherboard inside the case by lining it up with the internal screw sockets, and screw it in. Pull the plugs from the PCI Express slot, and push the graphics card in. Slide the hard drive in the appropriate slot inside the case, and screw it in. Do the same for the optical drive after removing the front protective panel. Connect each component to the power supply using four-pin, six-pin and 24-pin connectors, and connect the individual components to the motherboard.