- Feb 13, 2012
- Gigabyte Z490i Aorus Ultra - OC 0.6.8
- GT 1030
- Classic Mac
- Mobile Phone
Update using the Combo updater worked well:
USB 3.0 (configured using Rehabman's kexts)
... all survived the update and work as before except -
System Definition: iMac 14,2
Curious video playback problem - scrambled, multicolour mini-blocks, sound fine. Tried installing Nvidia Web Drivers but persisting - even though a GT740 should be fully native etc.
Changed System Definition to Mac Pro 3,1 and video is back ...
Removed EVGA GT740 graphics card, reset to system definition 14,2 and all is running sweetly again
OK, problem now solved. Not sure if this was due to a subtle change in the OS X code or Clover's but
here's a solution ...
Clover had defaulted to "Inject Intel" graphics. I hadn't spotted this because I'd used the UniBeast config.plist as it was my only way to get a bootable system after build. It's a sensible option because most builders will have onboard graphics of some sort and it guarantees a successful boot.
Using Clover Configurator I unticked this option and then went into the BIOS and disabled onboard graphics, leaving just the GT740 in PCI-e Slot 1.
On reboot all is fine and video now plays properly.
(I also had to install the Nvidia web-drivers so that OS X would recognise the GT740 correctly in System Report. Others have mentioned this change and I now wonder if Apple have in some way deprecated support for this chipset?).