Dear Hervé, I installed Mavericks 10.9.4 succesfully with Bootpack downloaded from: http://www.osxlatitude.com/edp/compatibility/
Everything woks except wifi card, which is Intel and I plan to change it with compatible one (disabled in BIOS - A19) It is D630 with nvidia.
Problem is that D630 stuck on boot (Apple logo with -v). When start it with -f, it works perfect. Can't see what is causing problems.
Please help with something
Sincere regards from Dubrovnik, Croatia