There's a piece of text I gathered from online but I can only understand some parts of it, so if you don't mind and if you can will you be able to make it easier for me to understand please. Thanks in advance
There should be an 8-pin cable made up of two 4-pin cables that snap together, marked EPS or CPU, NOT PCI, or PCIe. That goes by your CPU, at the top of the board.
A 6-pin, likely a 6-pin and a 2-pin that snap together, marked PCIe or PCI, plugs into your GPU. Leave the extra two pins hanging loose.
The big cable, probably 20+4 pins that snap together, plug into the big socket on the side of the board.
A SATA connecter (thin, with 5 wires) plugs into each of your ODD and HDD. Likely as part of a chain.
Your fans are either powered off your motherboard with 3 narrow pins at 0.1" spacing, or with a big 4-pin peripheral connector, with 2x black, red, and yellow wires.