Install EI Capitan on Thinkpad X230 from scratch for testing purpose only

1. Download EI Capitan

Install Mavericks in Virtual machine (How to setup)
Login your Apple ID, and download the EI capitan from App Store

2. Create Bootable USB

Follow the Guide UniBeast: Install OS X El Capitan on Any Supported Intel-based PC to create a bootable USB stick of EI Capitan
Follow this Lenovo T430 - El Capitan to configure the EFI partition of the bootable USB (including replace config.plist, change files in drivers64UEFI folder and move the kexts files ) >- You may need to mount the EFI partition of bootable USB (How to mount a hidden partition) >- Files needed(Where to download, begain with "we need one EFI driver not included in the Clover installer")

3. BIOS Settings & Install EI Capitan

According to the Guide, disable VT-d, Secure Boot Mode and set UEFI only mode. Moreover turn off the CSM support (Important!) (if you can not enter windows OS after, you should turn CSM on after the competition of OS X installation)
Follow this to install EI Capitan (the keyboard may be unavailable, plug a USB keyboard. It will take about half an hour. Upon completion, the system will automatically restart)
Use the USB to boot the computer and choose your new El Capitan installation at Clover screen, then complete OS X user setup

4. Post Configuration

Change the files of EFI partition insert DSDT & SSDT to /EFI/CLOVER/ACPI/patched replace config.plist to /EFI/CLOVER/ make sure your drivers64UEFI folder inclueds FSInject-64.efi, HFSplus.efi, OsxAptioFixDrv-64.efi, OsxFatBinaryDrv-64.efi.
Use MultiBeast to install Clover to disk and essential kexts AppleHDARealtekALC269, AppleIntelE1000, FakeSMC

The Ethernet adapter of X230 is Intel(R) 82579LM which could be driven by AppleIntelE1000e, while the wireless adapter is Intel(R) Centrino(R) Advanced-N 6205 which needs to be replaced.
Use Kext Utility to install extra kexts (including ACPIBatteryManager, BrcmBluetoothInjector, VoodooPS2Controller, EAPD Codec Commander) and repair permissions & update cache sudo touch /System/Library/Extensions && sudo kextcache -u /, then restart maybe twice.
(Optional) If you use other wireless adapters, for example AR9285, you just need to configure the Info.list and then rebuild the kext cache with kext Wizard to make it work. To get the bluetooth to work properly, do the same process as wireless adapters.
- wireless adapter info.list configuration (take AR9285 for example): cd to /System/Library/Extensions/IO80211Family.kext open the kext, locate /Contents/PlugIns/AirPortAtheros40.kext/Contents/Info.plist find <key>IONameMatch</key> add a line <string>pci168c,2b</string> in <array> below the <key>IONameMatch</key>
- Blurtooth Configuration: open/System/Library/Extensions/IOBluetoothFamily.kext open/Contents/PlugIns/BroadcomBluetoothHostControllerUSBTransport.kext/Contents/Info.plist, find idVender which value equals 2652， just change the idProduct to your personal ID (mine is 8678) Note: Before the configuration of Info.list, excute sudo chmod 777 Info.list, after the configuration sudo chmod 755 Info.list
DSDT Patch (Where to find)

DSDT was patched:
Layout Fix - 28
IRQ Fix
SMBUS
rename_PCI0.VID_PCI0.IGPU
PNLF_ivy_sandy
battery_Lenovo-X220
HD4000_LowRes
7-series/8-series USB
PN0T FIX
system_OSYS_win8
usb_prw_0x0d_xhc

Note:Replaced the bluetooth kexts with the BrcmBluetoothInjector from RehabMans repo. Sleep works now, even if you close the lid. Patch with usb_prw_0x0d_xhc and code from post #47.To get audio working after sleep, use EAPD Codec Commander - https://github.com/RehabMan/EAPD-Codec-Commander

Wireless adapters: I use Mi WiFi 1st gen,
Donload RTUSB_D2870-4.2.9.2_UI-4.0.9.6_2013_11_29.dmg, install USBWireless-Install.pkg, restart.
Open\System\Library\Extensions\RT2870USBWirelessDriver.kext\Contents\Info.plist, changes the pid to 16646 and vid to 10007 which is the Mi Wifi's pid and vid. Replace the Info.list, then restart again
In case control panel of RTUSB_D2870-4.2.9.10_UI-5.0.0.01 does not work, download DWA-125 MAC Driver, install DWA-125 driver, and delete the origin driver, add MiniTaskUSB-DWA125app to /System/Library/StartupItems/DWA125, then the DWA125 panel will boot with the OS
Use Kext Wizard to rebuild the system cache and restart the computer
Install native Power Management for Laptops

you can download the latest Beta of ssdtPRGen.sh by entering the following command in a terminal window:
curl -o ~/ssdtPRGen.sh https://raw.githubusercontent.com/Piker-Alpha/ssdtPRGen.sh/Beta/ssdtPRGen.sh
This will download ssdtPRGen.sh to your home directory (~) and the next step is to change the permissions of the file (add +x) so that it can be run.
chmod +x ~/ssdtPRGen.sh
When it asks if you want to copy to /Extra just respond 'n'. Same for opening ssdt.dsl... respond 'n'.The results are at ~/Library/ssdtPRgen/SSDT.aml. Assuming your EFI partition is mounted at /Volumes/EFI, copy that file to EFI partition, /EFI/Clover/ACPI/patched/SSDT.aml
Be aware that hibernation (suspend to disk or S4 sleep) is not supported on hackintosh. You should disable it:
sudo pmset -a hibernatemode 0 sudo rm /var/vm/sleepimage sudo mkdir /var/vm/sleepimage
For more infomation
Update OS X

Update El Capitan 10.11.2
Update Clover
Download and Install Update from Appstore
Reboot

5. References

Main references:
Booting the OS X installer on LAPTOPS with Clover
Lenovo T430 - El Capitan
UniBeast: Install OS X El Capitan on Any Supported Intel-based PC
install El Capitan on X230
Install Yosemite on X230
RehabMans repo
Mi WiFi for Mac
Common DSDT patches for Ivy/Sandy/Haswell laptops for running OS X
References may be useful for other machine models:
Patching DSDT/SSDT for LAPTOP backlight control
Disabling discrete graphics in dual-GPU laptops
OS X 10.11+ USB changes and solutions
Patching LAPTOP DSDT/SSDTs
Native Power Management for Laptops
Thinkpad X220 OS X 10.11 El Capitan Installation Guide