Dear pokenguyen,  
  
               Many thanks for nice guide. I am very newbie trying to apply as your guide. I have some questions, please  
  
              Now I am step number 15  
  
                       question 1) in your guide "open DSDT.dsl by MacISAL" 
  
                                          My questions:   Is DSDT.dsl is in desktop ? or system DSDT  ?  
  
                                       2) I paste your code and apply ( I applied in DSDT.dsl in desktop) I compiled  and got error as follows:  
  
                                            Line 3679, code 6126, Message syntax error, unexpected PARSEOP_ZERO 
                                            Line 3762 code 6126, Message syntax error, unexpected PARSEOP_ZERO 
                                            Line 4566 code 6126  Message syntax error, unexpected PARSEOP_ZERO 
  
                       What should I do now ? please