@anarceus GN seems to have not rebuilt the guides section of their website, unfortunately, though they have started making written content again lately
this should cover the basics nicely though
https://web.archive.org/web/20230827193900/https://www.gamersnexus.net/guides/1263-how-to-build-a-gaming-pc-tutorial/Page-2
@noiob thanks! Yeah it does, PCIe is next I think, only things missing are the graphics card and the PSU (and the remaining cooler wiring)
@noiob so far I'm at the cooler, I've been managing by reading a pcmag (?) article somebody gave me, bothering my father (did electronics training) and some British guy I know. Thanks, I'm stuck at the cooler (I need a 4 pin to plug into the motherboard but the only things the cooler hydra cable has is a 3 pin where only one pin actually has a connection) rn so maybe this can help
@anarceus here's a guide that goes a bit more in detail https://www.techradar.com/how-to/how-to-build-a-pc
your parts, especially your motherboard and your case should also come with written documentation that should inform you about the specifics, like which PCIe slots can be used at the same time