Qinx,
I have a Canada customer using Voodoo 350W with HDPLEX 250W DC-ATX(latest version). Here is what he reported.
Quote" I am currently running it with a Voodoo 350W power supply and my PC only has a 4670k (no GPU). However, the unit keeps shutting itself down."
Then he measured the DC output from the Voodoo adapter.
Quote" I measured the voltage, and there would be massive dips to 12-14V when power consumption suddenly increases."
Then he changed AC adapter to Dell and is running fine.
Quote "Bought a new Dell 330W power brick and everything appears to be working fine."
I am a little bit confused as well. It seems the project is basically to have Pico-BOX copy my old generation design and dimension, label it at 300W and most likely to sell it at 65-75USD on Aliexpress or ebay.
Nothing wrong with more competition.
I would suggest Frank from Pico-BOX to use Germany WE inductor which should have better response curve at high A application. 