Updated to 10.9.3 and all is well. Here is my recommended process:
1) Download the the 10.9.3 Combo Update from
http://support.apple.com/kb/DL1746.
2) If you want to continue using your current audio kext, Copy it to the desktop from the S/L/E folder.
Here’s a Terminal command that will do it for you.
Code:
sudo cp -R /System/Library/Extensions/AppleHDA.kext ~/Desktop
3) Install the update and restart.
4) Run KextBeast to install your old audio kext or use MultiBeast to install ONLY the audio kext.
Repaire permissions and Restart.
For GK110b (780ti) GPU user’s, the 10.9.3 requires a Nvidia Web driver update.
When the machine reboots after step 3, hold down or tap the control key to reach the clover GUI. Go to “Options” and hit enter. Scroll down to “Boot Args” and hit enter. Hit the left arrow until the cursor becomes visible in the line of boot args. Hit the right arrow until the cursor reaches the end of the line and add the flag:
Hit enter and select SMBIOS and hit enter again. Change the System definition from MacPro6,1 to MacPro5,1. Return to the 1st screen of the GUI and select you boot drive then hit enter to boot from it. Note that your system definition and serial number have changed.
This will disable all nvidia drives so you can boot and report that you are a Mac Pro 5,1 so you can install the new web driver.
Use the Nvidia page in Sys Prefs to update the Web driver
or download and install it from here:
http://www.tonymacx86.com/graphics/...ate-graphics-drivers-10-9-3-334-01-01f01.html
All the changes you made in the Clover GUI are temporary and everything should return to normal when you reboot.
If the changes remain after rebooting, Terminal:
and reboot again.
For anyone using the web drivers, The NVIDIA Driver Manager may show that the OS X Default driver is loaded when the Web diver actually is:
as seen here in the System Report.
If you ever want to switch back to the OS X Default driver without uninstalling it:
1) Mount the EFI partition and open /Volumes/EFI/EFI/CLOVERconfig.plist with TextEdit. Change nvda_drv=1 to nvda_drv=0. Save.
2) Open the NVIDIA Driver Manager in System Preferences. Unlock to make changes. Select the Web driver and click cancel when prompted to reboot. Select the Default driver and reboot. If you get a black screen when your system starts, reboot again.
Repeat the process and use nvda_drv=1 again to go back to the web driver.