Install Aida64 right click on status bar at bottom of Aida64 screen and you will see this menu.
Select ACPI tool and a new screen with Save DSDT button will open.
Save dsdt file and Boot OS X and rename that file with aml extension
sudo cat /proc/acpi/dsdt > dsdt.aml
sudo cat /sys/firmware/acpi/tables/DSDT > dsdt.aml