Hi Boys.... finally i have 5 second ago a i have borrowed another DataTraveler G3 same model of my! Only different it's the size, 16Giga (my it's a 8Giga).
This "new" Datatraveler work at speed so much hight respect my......... a try to copy some file with Teracopy and reach 11MB/s.... after that i have try to watch with AIDA64 and it's successfully used the potence of USB 2.0 
I have disconnect this Kingston 16GB and i have reconnect my!!! NOTHING!! My Kingston it's 4 ever connected at Full usb 1.1 !!
For now i have resolve in this mode:
From my friend and from a your old pc i have take from him a PCI - USB 2.0 Card and i have installed on this MotherBoard!! Now i'm 12 Port usb 2.0 and i have try to connect my Kingston on a usb port on this PCI Card. Here it's correctly connect at speed 2.0 and i can reach 6MB/s in write in 10 MB/s in read !!
This is not a better solution but it's sometime betting nothing.....