Hi,
using ROCK3 CM IO Board and the latest image from
i tried different devices, which all yielded bad or no results.
A known good sata ssd in a known good usb3 to sata adapter yielded 400+mb/s read, but only about 100kb/s write performance (using dd)
two known good 10g intel nics connected to eachother maxed out reading at 160mb/s with LRO (cpu load low) and 130mb/s without (one core maxed)
two known good realtek based 2.5g nics connected to eachother yielded comparable results.
a GT640 nvidia card in an external riser was not detected
two known good sata devices, a hdd and an ssd connected to the sata ports, were not detected at all.
The IO module is powered by a clean 12v 5A psu, the other devices were powered through a known good PC psu.