@RiShiE, try these files. You'll need to generate your own SSDT for power management using ssdtPRGen.sh.
@ypdeveloper, I don't think he patch the BIOS, otherwise he won't need to manually patch the kext. The SSDT/DSDT attached by RiShiE are raw and not patched. You can try the one attached if you have the exact same specification.
You don't need to patch the kext, you can do it with the Clover config file to patch on the fly. I checked the config file from RiShiE, it's included but it's disabled. Search for it for 10.11beta and remove the disabled: in front of the FB.
Update:
I see this model is already supported in EDP, EmlyDinesh already included his patched DSDT, seems to combined all 3 SSDT into DSDT I have attached with all boot files included. Test both if you like.
Z51-70.zip