Cool Bluetooth works with no Kexts/patches to anything! I tested with Bluetooth speaker, also works flawlessly with Bluetooth! Need to test handoff and airdrop. Also sleep, everything else is installed. Uninstalled intelcpupowermanagement Kexts. Installed iMac and hibernate mode desktop. HDMI audio also, will install ALC 898. Do you think getting a GTX970 is a good idea with a 500w psu. What are your bios settings?