
Though it can vary depending on the manufacturer, the CPU cable usually plugs into the top left side of the motherboard, near the I/O on a standard layout

Modern CPUs draw more power than the 24-pin motherboard configuration can provide, which is why the additional 4/8 pin cable came into use. 4/8-pin CPU: This connector provides power to your CPU.24-pin Motherboard: The way power is allocated varies from motherboard to motherboard, but the 24-pin connector/cable is frequently used to power important features such as the chipset and PCIe*.The exact cables you’ll use will vary depending on the specifics of your build, but you’ll most likely be dealing with the following: Though the PSU you purchase should come with all of the cables you need, it’s worth knowing what the individual connections look like.

Let’s kick things off by going over the different cables power supplies use to provide power to your system.
