I have install Yosemite on my old Laptop... 
found a dsdt in the internet... I need this because i can don't disable the Geforce GT630M.. 
  
I can only boot with the DSDT... 
  
What don't work 
-Sleep (go to the Sleep and 1 second later wake up) 
-The 2 USB Ports on the left 
-Audio.. perhaps it is possible without VoodooHDA? it is AL269 
-Battery status..  
-FN left and right for Brightness controll 
  
DSDT attached. 
  
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When i boot woth UseKernelCache=Yes the Laptop boot and then i see a KernelPanic and 1 second later Reboot... 
  
 
 
Extra.zip