Now you've go me wondering what fixed it. I can see in my SR Tools history that I removed ALC8xxHDA, AppleHDA, and HDAEnabler898. Those are the same kexts I re-installed from multibeast and currently have loaded. I think I rebuilt the kext cache... maybe that is what fixed it.

After I re-installed the kexts, I ran this command inside a terminal window:

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Old Rig: Gigabyte GA-EP45-UD3R v1.1 @ F12, Q9450, 8GB DDR2, nVidia 8600GT, Lion
New Rig: Gigabyte GA-Z77X-UD5H v1.0 @ F8d, i7-3770K, 16GB DDR3-1600, Radeon 4670, 8 HDD, Samsung 830 128GB SSD, Toshiba 100GB SSD, ZEVO ZFS, Lion
Mac Mini: MB463LL/A (Early 2009), Intel X25-M 80GB, 4GB, Lion

anyone have any luck with the ethernet cables?

I'm trying to understand your question in the context of this thread...

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Old Rig: Gigabyte GA-EP45-UD3R v1.1 @ F12, Q9450, 8GB DDR2, nVidia 8600GT, Lion
New Rig: Gigabyte GA-Z77X-UD5H v1.0 @ F8d, i7-3770K, 16GB DDR3-1600, Radeon 4670, 8 HDD, Samsung 830 128GB SSD, Toshiba 100GB SSD, ZEVO ZFS, Lion
Mac Mini: MB463LL/A (Early 2009), Intel X25-M 80GB, 4GB, Lion

Luck?
Just plug them in.

Usually only one of the ethernet ports will work.
Perhaps that is your issue?

Both ports work; for me the Intel port worked OOB and the Atheros port worked once I installed the driver for it.

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Old Rig: Gigabyte GA-EP45-UD3R v1.1 @ F12, Q9450, 8GB DDR2, nVidia 8600GT, Lion
New Rig: Gigabyte GA-Z77X-UD5H v1.0 @ F8d, i7-3770K, 16GB DDR3-1600, Radeon 4670, 8 HDD, Samsung 830 128GB SSD, Toshiba 100GB SSD, ZEVO ZFS, Lion
Mac Mini: MB463LL/A (Early 2009), Intel X25-M 80GB, 4GB, Lion

Any issues with sleep and wake-up? When you sleep and wake-up, does the screen stay blank or does it wake up like it should?

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Snow Leopard 10.6.x Install Guide for Asus P8P67 Deluxe
UniBeast & Lion 10.7.2 Install Guide for Asus P8P67 Deluxe

Asus P8Z68 Deluxe/Gen 3 • i7 2600K (4.6Ghz) • 16 GB GSkill • XFX Radeon HD 6870 Black Edition • Corsair Force GT 480GB SSD • 3 x WD Black 2TB • Apple 27" LED • Apple Wireless Keyboard • Apple Magic Mouse • Apple MacBook Bluetooth Module Mod

Sleep seemed OK, but I only tested once. My machine is a server and needs to stay on all the time.

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Old Rig: Gigabyte GA-EP45-UD3R v1.1 @ F12, Q9450, 8GB DDR2, nVidia 8600GT, Lion
New Rig: Gigabyte GA-Z77X-UD5H v1.0 @ F8d, i7-3770K, 16GB DDR3-1600, Radeon 4670, 8 HDD, Samsung 830 128GB SSD, Toshiba 100GB SSD, ZEVO ZFS, Lion
Mac Mini: MB463LL/A (Early 2009), Intel X25-M 80GB, 4GB, Lion

Hey Bicster, trying to get my Audio working as well... did what you said but no luck. System doesn't even recognize any devices.

I only got it to work for a few boots. I'm still not sure what went wrong.

I ended up making a custom DSDT with just the audio edits, and using Toleda's interim AppleHDA for the 898. Last but not least, I removed the enabler since I had a DSDT. Sound is working reliably for me now.

For some reason my system shows two line outputs. Only one of them works, and I think it's on the wrong jack, but whatever... it works, so I didn't worry about fixing the layout.

I'm attaching the DSDT I made for my F8d BIOS. I didn't try the other DSDTs floating around since they didn't match my BIOS version.

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Old Rig: Gigabyte GA-EP45-UD3R v1.1 @ F12, Q9450, 8GB DDR2, nVidia 8600GT, Lion
New Rig: Gigabyte GA-Z77X-UD5H v1.0 @ F8d, i7-3770K, 16GB DDR3-1600, Radeon 4670, 8 HDD, Samsung 830 128GB SSD, Toshiba 100GB SSD, ZEVO ZFS, Lion
Mac Mini: MB463LL/A (Early 2009), Intel X25-M 80GB, 4GB, Lion

Tried it and it KPed lol. Obviously because my board is F6... maybe? As you said the audio temporarily worked with your first fix. I compared the HDEF Lines with your dsdt and the one from the downloads section and it's got the same lines... with the exception of the line