I have the B450 i. I forget which BIOS update that would support 64GB RAM. Anyway the latest BIOS(NOT the Beta vision, important)certainly will do. Even in Asus QVL lists only G Skill 64GB memory. I use Corsair LPX 64GB without issue. I can even OC it from 3000MHz to 3400MHz and run tighter timings.
Regarding watercooling. like you said, the Ryzen 5 3600 isn't a hot chip. A C14S or U9S will handle the cooling nicely. No need for AIO.
I have this motherboard, but not the Noctua NH-C14S cooler. So not sure about the clearance. However I tried the U9S, which fits without any hiccup. It...
If you use the second M.2 slot, it will reduce the PCIe slot to 8x, instead of 16x. Which is still fine unless you want to use a 2080Ti. GPU less powerful than 2080 Ti will not be affected by the reduce PCIe bandwidth.
Raijintek should dump the ATX PSU and shrink the case to less than 20L to be a true itx case. At 22.4L, they better make it a M-ATX case. And the proportion of the case with tempered glass panel make it looks like a microwave oven. Perfect for sitting on the kitchen table.
Optimum Tech had his NCASE M1 using U9S and tempered glass side panel, before using 240mm AIO. It cooled just fine as long as you have two bottom fans. Look up his channel. Tons of information about NCASE M1.
I use the same mobo. I watched Buildzoid's video on Gigabyte X570 BIOS. I went through all the options. However if you plan no OC. Good news you don't have to do much in the BIOS. Undervolt will help the CPU runs cooler and also boost the performance slightly. However, as you keep lower the...
The Corsair MP600 M.2 SSD has a very tall heatsink. You will have problem with the chipset fan/heatsink of the Gigabyte motherboard.
The Corsair SF600 comes with black sleeve cables. The length is about right for the configuration like the NCASE M1. You won't have the problem of spaghetti...