Guys, I got now a memory of 1,250 Gbyte and the system used untill now max 450 Mbyte, so this could not be the problem anymore:lol: .
Next, i did check the capacity of the cpu. I discover the interface is critical. When Voyager is working without interfacing (but with + wind,tide,routing and polairdiagram) he uses 30% cpu capacity. With interfacing operational, he uses over 100%. I did check the NMEA sentences, he did receive and send to many sentences and i put some of them off, the cpu capacity went to 80%. Now I got even cpu time for Navtec and Weatherfax.