@Patrick Referring to a 32-thread CPU like 7351P as "lower-end" made me chuckle hard.
To add to the discussion, I was an ITX junkie myself, having built a few AMD/Intel machines in really small and pretty much quiet too. But the moment I wanted to modify or upgrade the machine it always became a real hassle to undo cable ties and move things around. So unless you live in a 10sqm 1-room appartment in Hong Kong or New York I recommend getting a uATX/ATX board instead and use a case with one quality silent 140mm rear fan and for the CPU also to get a quality cooler like from Noctua. 10GBaseT ethernet and SAS3008 chips need more airflow though because they guzzle 5-10watts hence the large heatsinks on them.
If the system needs to be wife-compatible for the living room then my recommendation is to split media PC (anything Kodi/ARM) from storage (ATX).
To add to the discussion, I was an ITX junkie myself, having built a few AMD/Intel machines in really small and pretty much quiet too. But the moment I wanted to modify or upgrade the machine it always became a real hassle to undo cable ties and move things around. So unless you live in a 10sqm 1-room appartment in Hong Kong or New York I recommend getting a uATX/ATX board instead and use a case with one quality silent 140mm rear fan and for the CPU also to get a quality cooler like from Noctua. 10GBaseT ethernet and SAS3008 chips need more airflow though because they guzzle 5-10watts hence the large heatsinks on them.
If the system needs to be wife-compatible for the living room then my recommendation is to split media PC (anything Kodi/ARM) from storage (ATX).