So I'm looking into making a pc some time in the near future and I'm trying to finalize a build so I can start buying things when they go on sale (I currently have a mediocre pc, so I'm not in any hurry). For my motherboard I'm planning on an X470 AORUS ULTRA GAMING. I was checking out it's documentation and there was a page listing supported hardware. So my question is, are the objects in these lists the only options I have for hardware, or are they just guidelines? For example; I was planning on G.SKILL Ripjaws V Series 16GB (2 x 8GB), Model #: F4-3200C16D-16GVKB for my Ram kit because the Gigabyte website states that the motherboard supports 3200MHz ram. When I looked at the list the closest supported ram kit from G.Skill was a 3000MHz kit (the only G.Skill kits running at 3200MHz were a 32GB kit and a 64GB kit. Are these strict rules as to what hardware I can use, or are they recommended hardware options? Same problem for the ssd I wanted from Crucial. Help would be greatly appreciated.
mb_memory_x470-aorus-ultra-gaming_pinnacle.pdf
mb_m.2_support_180619.pdf
Edit: Thanks to all the help, I realized that this motherboard was overkill for my needs, which led me to select a motherboard from MSI (the B450M Pro-M2). MSI provides significantly better documentation for the memory and storage devices supported.