Yosemite Kext’s

ALC662v2 Kexts I know both the speaker port and the headphone port work, one of the Microphones and the digital port works so it’s not so bad. Have no crackling or noise issues either! (http://www.insanelymac.com/forum/files/file/427-alc662v2-applehdakext-for-1011-el-capitan/) Thanks to wolfmannightNotH1AX


Realtek RTL8168G/8111G Full support for the network adapter.


Mavericks and Yosemite Installation (clover) Part 1

Photo’s to follow…

  1. Reboot PC
  2. Plugin USB Installer flash drive
  3. Hit F12 (or boot menu button) rapidly until it shows
  4. Select your USB drive and boot off of it.
  5. This loads the front screen of clover (Depending on the theme you choose. The layout will look different but the settings layout is exactly the same!)
  6. Push the right arrow key and your see that something is highlighting the different icons or boxes
  7. Hightlight the install “Boot Osx Install from Install OS X Mavericks” box or icon.
  8. Push the space bar this will load additional options.
  9. Select “Boot Mac OS X with injected kexts”.
  10. This should now load the Mavericks Installer. – If you get a kernel panic or it does not load see the trouble shooting page or How to setup clover as an. Or use config.plist posted on website.
  11. You should see a mouse cursor appear in the top left hand corner of the screen. It may take some time for the OS X installer to load up.
  12. After all has loaded your see a Box on the first screen. Select your language and push the arrow key.
  13. Select “Disk Utility”.
  14. Select the drive not the partition that you’re going to install OS X on.
  15. To your right your see some tabs. “First Aid” “Erase” “Partition” “RAID” “Restore”
  16. Select Partition
  17. Now in the partition tab this is how you need to setup your disk. Example; Partition Layout “1 Partition” Name “Mavericks” Format “Mac Os Extended (Journaled)” Options… “GUID Partition”. You must always have the Partition type as GUID Partition and also Partition format as Mac Os Extended (Journaled).
  18. Now apply the settings to the drive by hitting the “Apply” button. This well take different amount times depending on if you’re formatting a small or large drive or a SSD or Normal hard drive.
  19. Close down the Disk Utility window by pressing the small red button in the top left button corner of the Disk Utility window.
  20. Select Install OS X
  21. Push the continue button in the bottom right hand corner
  22. Next Push Continue, then Agree, then again Agree.
  23. Select your Driver you formatted and partitioned for install.
  24. Now wait for 10 to 20 minutes. All depends on what your install on to.

After it has installed the first part it will reboot.

Elements in Testing

UEFI – Set up and correctly working but still testing to make sure it is 100% stable.

Mavericks – Finally got it booting and it seeing the graphics card so QE/QC working. Still a ton of bugs to fix though and other devices to get working. But finally got it to a point were the rest is easily to do.

Yosemite – Ill post up the current legacy settings and installation for 10.10.1 but will be looking to upgrade it to UEFI soon as possible.


Update of progress… 9/04/15

I have a copy of Mavericks on a hard drive but I can’t work out how to get graphics enable QE/QC at all. All of the driver have installed fine no problem. I have tried intelazulFB which does not work like it does on Yosemite. I am still working on and will not give in til I suss it out. If you require the steps to reach where am stuck please just ask.

Update… 23/04/2105

After some research I don’t think you can get legacy boot loaders to load the graphics settings in Mavericks. Every time IntelAzulFB=12 tries to load the system loads to a blank screen.

I decide to give Clover ago and used UEFI. I finally have Full HD 1080p and QE/QC working but have a ton of bug fixes and have to install some other kexts.

UEFI working fine expect from random changes in the themes which am going to look in to as it is super annoying. Pretty sure it’s a simply fix. Depending on when you brought your Lenovo ThinkCentre E73 TWK will make a difference. If your using Windows 7 am going to have to look in to installing it under a UEFI partition if your using Windows 8 / 8.1 it should be easier to integrate  them both. But at present am using different hard drives and solid state drives to keep it simply for the ease of booting.


I have Yosemite 10.10.1 fully working and currently writing out the steps to how to install it on to the Lenovo Thinkcentre e73. Over the process should not take any longer than 2 hours in total but hopefully a lot less that if you use my uploaded files!

Updated 01/07/15

I have updated my Yosemite system to 10.10.3 which is fully working. All instructions will cover all versions of Yosemite.


I will upload the resources I used to complete installation of the mac operating system. This will include kext’s, bootloaders, tools, etc… Also be publishing the all the details of where I acquired the files. So full credit will go to the developers of the file / files.

I also list where I found the guides to I used to make it possible to get the mac operating system on my pc.

Boot loaders

Chameleon Wizard 



This tools allow you to install in the built in version of Chameleon bootloader on to your selected partition. It will also allow you to then install a org.chameleon.boot.plist and smbios. This two compounds are virtal if you plan on booting in to Mac without your flash or hard drive.

Chameleon boot plist built for the Lenovo ThinkStation E73