A:AnswerThe case that you buy come with mounting screws! Be sure to check the box that the case came in as there should be a small plastic package with all that in it
A:AnswerThis board supports 3600 speed RAM. It does have a maximum limit of 64GB. If you plan on using Ryzen 3000 series processors, anything above the 3800x will run into a bottleneck due to memory starvation. You need 4GB/thread or the system swaps to ssd and that creates overhead that slows performance.
A:AnswerIt does to a point. On higher end chips like the 3800X 3900X and 3950X the VRM may not be able to handle the OC and at that point you may want to bite the bullet and go X570. Lower end like the 3600, 3600X, and 3700X it should be able to handle a modest OC. Ryzen doesn't like to go beyond 4.3Ghz anyway.
A:AnswerThis motherboard has 4 system fan headers, one cpu fan header, and one pump fan header. Though you can always use a fan splitter or fan controller if you need to control more fans.