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First of all I want to thank all the people in advance who helped make this happen all the credit goes to them, I just gathered what I’ve learned from them.

Pike R Alpha, RehabMan, Majonéz, Yassinex, Toledo, Todeleda, TheRacerMaster, OiCKilL, Andres ZeroCross, bomerr and many other great minds who helped me out. If any name/s is/are left out please let me know so I put it/them right here.

These are my specs:

Gigabyte Z170X-Gaming 5

Intel Skylake 6700K @ 4.0 GHz up to 4.2 GHz

4x8 GB 2666 DDR4 GSKILL RIPJAWS Memory Modules

Kingston HyperX Savage 240 GB 6Gbps SSD

AMD Radeon HD7790 1 GB GDDR5

TP-Link WDN-4800

CoolerMaster Nepton 120XL Cooling Unit

CoolerMaster V750-Gold Power Supply Unit

CoolderMaster Silencio 452 MidTower Case

 

BIOS Settings:

In BIOS from M.I.T. choose Advanced Memory Settings

     I. From Extreme Memory Profile(X.M.P.) I Choose [Profile1] it's crucial to choose this option if you want your memory modules work with their full frequency.

     II. Enter the correct System Memory Multiplier which in my case based on my 2666MHz DDR4 it must be 26.6.

     III. Select [Enhanced Performance] from Memory Enhancement Settings. You can choose any of the options I chose Enhanced Performance.

     IV. From BIOS Features Fast Boot is disabled, Windows 8/10 Features is set to Windows 8/10 WHQL, LAN PXE Boot Option is disabled, CMS Support is Enabled, Storage Boot Option Control is UEFI Only, Other PCI Device RPM Priority is UEFI Only and Network Stack is Disabled and Secure Boot State is Disabled.

     V. From Peripherals: VT-d is disabled, Internal Graphics is set to Auto, Audio Controller is Enabled, Audio DSP is Disabled, PCH LAN Controller,SATA Configuration is set to AHCI, Wake on LAN and High Precision Timer are Enabled. I didn’t patch my BIOS because of a great job that Pike R Alpha did with a kext based patch for Skylake processors and to patch the AppleACPI.kext.

Under Super IO Configuration Serial Port must be disabled as well.

UPDATE: I recently updated my BIOS to f5h and IOAPCIEntries 24-119 Entries is there so if you are using that version of the BIOS or anything prior to original f4 you don't need to use the ACPI patch.

     VI. Save your new settings and reboot.

Here is a copy of my EFI folder which works great with this configurations, Just remember I didn’t inject any Graphic Adapters so you have to configure it with yourself based on the graphic adapter you are using.

https://www.dropbox.com/s/7bthzjmrhex9ivp/GA-Z170X-Gaming%205.zip?dl=0

 

Activating Audio:

Download and install VoodooHDA 2.8.8.V3

Use clover configurator to edit your config.plist

ACPI: "Add the following DSDT Patch"

Comment: Rename HDAS to HDEF

Find* [HEX] :48444153

Replace [HEX] :48444546

Set the following flags under Boot section:

kext-dev-mode=1 and rootless=0

The audio won't work by default, you need to install Toledo's audio driver or install VoodooHDA.

Toledo's commands are available at: https://github.com/t...audio_CloverALC

and

VoodooHDA is available at: http://sourceforge.n...ects/voodoohda/

I personally use VoodooHDA instead of Toledo's script because for some unknown reason with Toledo's audio kexts and script while I was playing musics after a few minutes I could hear a noise which was getting worse so I tried VoodooHDA and now it work perfectly fine.

My audio layout is set to 1.

FYI: If you are going to use VoodooHDA just remember after you installed the VoodooHDA there will be a file in your application folder called "VoodooHdaSettingsLoader" which you need to place it in your login items in system preferences under "Users and groups" ---> "login Items" and adjust the "input Gain" under "VoodooHDA" in system preferences to avoid the hissing sound every time the OS starts. and if you don't every time you restart the system you'll need to adjust your audio settings. By loading this application OS will remember you settings and load them.

 

 

USB 3.0

Under ACPI add this DSDT Patch:

Comment: change _OSI to XOSI

Find* [HEX] : 5F4F5349

Replace [HEX] : 584F5349
 

and
 

Comment: Change EHC1 to EH01

Find* [HEX] : 45484331

Replace [HEX] : 45483031
 

and
 

Comment: Change EHC2 to EH02

Find* [HEX] : 45484332

Replace [HEX] : 45483032
 

Under Kernel and Kext Patches add the following to “KextsToPatch”:

Name*: AppleUSBXHCIPCI

Find* [HEX] : 83BD8CFEFFFF10

Replace [HEX] : 83BD8CFEFFFF15

Comment: Raise USB Port Limit

You also need to add RehabMan’s “USBInjectAll.kext” to the following path under EFI\Clover\kexts\10.11\

which is available for download at RehabMan’s site.

https://bitbucket.org/RehabMan/os-x-usb-inject-all/downloads

 

Graphics:

I Use an AMD RadeonHD 7790 Graphic Adapter with these settings:

Under Graphics:

Dual Link is set to 1, FB Name is set to Baladi, VRAM is set to 1024, Video Ports is se to 4, Load VBIOS is checked and finally Inject ATI is checked too.

Under Kernel and Kext Patches:

ATI Connectors Data is set to:

000400000403000000010300120403030004000004030000000101001102010100040000040300000001020021030202000400000403000000010400220504040004000004030000000105001000050500040000040300000001060020010606

and

ATI Connectors Patch is set to:

000800000400000000010300220503030004000004000000000101002103010200040000040000000001020012040201040000000400000000010400010204040400000004000000000105000000050600040000040000000001060020010605

and finally Ati Connectors Controller is set to 8000 

 

Cheers!

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Edited by Cyberdevs
I installed the El Captain on my new Gigabyte GA-Z170X-Gaming 3 mothermoard two days ago, and everything works, including sleep too.

 

Hello Majonez!

 

Sorry to be a nuicance here. But I have that exactly same motherboard - Gaming 3. If you have any patience, can you please try to document all of your steps in a new thread? Or on tonymacx86 website?

 

I would really appreciate that a great deal.

 

Something else: Yesterday Gigabyte eSupport team send me an experimental beta build 'F5d' for this mobo with the missing IOAPIC setting un-hided. I've already flashed it - seems to work OK and is otherwise same as the current 'F5b' beta BIOS. Perhaps you don't need it, did the clover patch work for you? Or did you mod the BIOS yourself? Anyway please fully document steps somewhere if you can. As nobody else has done any guide for gaming 3 yet. Many thanks.

 

> Can do you upload the BIOS image what you received?
 
 
md5sum: 193001e155ada9348760239c82302595  Z170XGaming3.f5d
 
It seems they have based it on the current 'beta' BIOS F5b. Includes the necessary IOAPIC menu option now visible under Precision Timer.
 
Thanks for 'EFI' folder. It will help very much.
 
Another Question sorry: I only have access to a Mavericks Zone (Niresh) VMWare VM where to make the m/Beast Setup etc. Should I install El Capitan to target disk directly from a running VM, or make USB Key, or make USB Installer on spare SATA HDD? Which of those 3 general method is best?

 

> Can do you upload the BIOS image what you received?
 

 

It requires a decryption key.

 

If you can install the sys from the vm, do that, but you can boot up from the key on your machine directly too.

You must check my graphics settings in the plist.

 

@cyberdevs

You must replace my DSDT with yours.

Did you disable IOAPIC in your BIOS? If you don't have this option, you need Pike's kext patch.

As a matter of fact, I did both, first I patched the bios because I had trouble booting into Mac OS installer then i used Pike's patch to see if SATA works. After a lot of  rebooting and changing configuration I was able to install OS on a SATA HDD, but it's a work in progress. I have no audio yet and didn't have time to work on it.

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