cscs wrote:Why my config work if i used my port at the right side and not at the left side ?
Because ASMedia USB3 chips are known to not work reliably in certain USB transfer modes.
cscs wrote:If lenovo use the asmedia control for 2 ports (left) i imagine he used the same for the 2 ports at right, no ?
No not necessarily. A basic number of USB ports is being provided by the chipset (South-Bridge, see also https://en.wikipedia.org/wiki/Southbridge_(computing)).
Sometimes more USB ports are required, so additional communication chips are being connected to the Southbridge, like one from ASMedia.
Where those additional communication chips are being placed on the PCB is simply a question of practicability.
Short signal paths on PCB, avoid as many multiple layers as possible, make it easy for users to access the ports at usual conveniant places.
An USB port in the front of a Laptop might maybe be nice for the routing of signal paths on the mainboard, but
which user would want something like this...
So all of these considerations and circumstances can lead to a different distribution of USB ports coming from chipset and from 3rd party I/O chips like from ASMedia on the left / right side and sometimes even on the back of a laptop.
For Desktop mainboards this is very often documented properly in the handbook, which USB port is fed by chipset or by 3rd party / add-on communication chip, but in this case I found no information in Lenovo documentation. The only way to find this out is "eventually" a look at the mainboard, but I wouldnt recommend this with Laptops as it can be very tricky to get components out, additionally on a multi-layer PCB its not guaranteed to see this.
BR Ramses - UFX III, 12Mic, XTC, ADI-2 Pro FS R BE, RayDAT, X10SRi-F, E5-1680v4, Win10Pro22H2, Cub13
please, if you have 15 seconds : how is possible? 