H97 and i7-4790 -- almost working

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I put together an H97 machine for gaming and work, and I've installed OS X 10.9.3 Mavericks on it. Here's a rough log. I'd appreciate advice on fixing the things which aren't working, especially video playback and sound. Hardware:



  • GA-H97N-Wifi

  • Core i7 4790

  • EVGA GTX 770 with ACX cooler (this is whiny under load, BTW)

  • Samsung SSD 840 Evo 120 GB system drive on SATA1 (Windows on SATA0)

  • 1080p DVI monitor

  • 16 GiB DDR3-1600 RAM


I had some trouble with the initial install, partly because I installed 10.9.2 by mistake and had to upgrade, and partly because of BIOS. The key to installing was to use conservative BIOS settings:



  • VT-d off -- probably required

  • IGPU off -- definitely required; without this it only comes up in safe mode

  • I set some other ones which I haven't experimented with:

  • XHCI = Smart auto

  • XHCI Hand-off enabled

  • EHCI Hand-off enabled

  • XMP 1, 1600 MHz.

  • NVidia web drivers.


My MultiBeast configuration:



  • Realtek ALC892 without DSDT, HDAEnabler (doesn't work)

  • 3rd party SATA

  • Trim Enabler for 10.9.x

  • FakeSMC v6.0.1123

  • USB 3.0 Universal

  • Chimera 2.2.1

  • Atheros L1c Ethernet (doesn't work)

  • AppleIntel E1000e

  • AppleRTC Patch for CMOS Reset

  • Generate CPU States

  • GraphicsEnabler=Yes

  • Hibernate Mode -Desktop

  • IGPEnabler = No

  • Use KernelCache

  • 1080p display mode

  • Mac Pro 3,1


Working:



  • GUI comes up fine and works normally and smoothly

  • All apps I've tried, except as noted

  • Boot is fast-ish; shutdown could be faster but isn't terrible

  • Sleep and wake

  • Intel power widget; frequency scaling; hyperthreading

  • Stability for at least several hours under heavy CPU load, across sleep and wake (running some math to break it in)

  • Unigine Heaven

  • DVI-I port of graphics card

  • One of the two Ethernet ports (the one closer to the graphics card; I think it's the Intel one)

  • USB

  • Flash which doesn't try to play video

  • f.lux, Alfred, Time Machine


Not working:



  • Video playback from QuickTime, Flash or HTML5

  • Sound it won't even try to play sounds in iTunes

  • Second ethernet port

  • DVI-D port of graphics card (at least, I can't switch between them while running)

  • Bluetooth

  • WiFi

  • Booting to Windows 8 via the Chameleon boot menu

  • Sleep mode results in "check signal" instead of blank screen, but otherwise works

  • Integrated GPU

  • The clock fights the Windows clock (one stores in UTC or something?)


Not tested:



  • Quick boot

  • Gaming on OS X (I'm using Windows for that right now)

  • System updates

  • I/O-heavy workloads

  • HDMI and displayPort


When I try to play sound or video, Console shows SoundAssertion in {AppleHDAController, AppleHDAEngine, IOHDAStream}. So it might be that this is blocking both. Any recommendations? Do I need DSDT for this, or do I need to wait until there's a fix for this particular motherboard's sound? Should I try a cheap USB DAC?


Thanks for reading!



submitted by monad_nomad

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