I download the OS X Mavericks app from the AppStore & Made a Bootable USB Drive using unifail & set SATA = AHCI XHCI = Auto Enabled CSM In the BIOS and booted the USB drive & OS X Installation Screen appeared using the GraphicsEnabler = Yes flag.. But the mouse was not working.. I tried both.. USB & PS2 none worked. Using the keyboard I Partitioned the Hard Disk and installed the OS X.. which successfully installed.. & booted..I managed to open the multifail app using keyboard.. But wasn't able to proceed to multifail kext installation using keyboard.. As mouse was still not working.. So I had to remove this installation... Then again I created OS X Mavericks.. Using my other Mac Book.. But again after the booting the USB in my hackintosh build mouse was not working.. I installed voodoo PS2 controller kext in the USB.. But even it didn't made USB to work. I also tried boot flags such as USBBusFix=Yes EHCIhard=Yes -x But nothing worked My build Specifications are CPU = i5 4670 Mb = GA-B85M-D3H GPU = Nvidia GT 620 Monitor = VGA Acer P166 HQL So.. What should I do to make the Mouse work ?