1. Set the BIOS correctly.
2. Load Yosemite app from the AppStore.
3. Create USB Stick (since there are thousands of tutorials and youtube videos for learning for how to do that)
4. Find the appropriate drivers, if necessary (everything is described in the link above)
5. Install and be happy.
6. Create a modified dsdt and use the patches of rehabman:https://github.com/R...ptop-DSDT-Patch