My quick breakdown on CPU coolers for the A300...
There is a possibility we could get the ASRock CPU cooler, but not certain (see my post above)...
The Ryzen APUs come with a Wraith Stealth CPU cooler, which is supposed to fit if one removes the outer fan shroud...
Either of the two above have 25mm thick fans, so swapping in a NF-A12x25 PWM would be the ticket...
But keep in mind the fan hub is larger on a 120mm fan, so more of a "dead spot" over the heat sink...?
If going for a 120mm fan with the Noctua NH-L9a AM4, one would need to use a slim fan (NF-A12x15 PWM), but this would leave about a 7mm (or so) gap between the fan & the heat sink, which may not be optimal...
All that said, now I might need to add a NF-A12x15 PWM & a NF-A12x25 PWM to my Newegg cart for testing purposes (but zero promises)...
