A quick update on testing out the hardware I plan to use. I installed my OS hard drive onto the Gigabyte Thin ITX board with G4400 CPU and Coolsolte blower fan.
It runs well, but until I installed mobo drivers and other software it was running loud, constantly at 3k RPM. I used EasyTune to control the fan curve, and now runs pretty quiet under idle and typical application loads, about as quiet as the Scythe Kozuti fan.
Then I went and took it next level- installed the Radeon WX 4100. Keep in mind that I don't have a powered riser yet.
To my surprise the mobo took it pretty well, did some benchmarks and gaming and the system hasn't hiccuped so far. This is interesting for a 4x slot that is rated at 25W power draw.
The WX 4100 consumes a maximum of 50 watts, but I haven't seen it peaked yet. And the system's total power maxes out at 70W. I think this is pretty sweet, I could downsize my power brick and be fine with 90 or 100 watts if I wanted to!