HCL 10.8 Seeds

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This is a component level hardware compatibility list for pre-release versions of Apple's Mac OS X Mountain Lion. As this is not the final release, compatibility may change throughout the builds, so please, do not rely on this list when buying hardware. It is for those who wish to share/experiment with pre-release versions of the OS. Add which parts you have working in the categories listed below, or create a new category. Please keep alphabetical order inside the categories. The categories themselves are ordered by popularity. Please list any caveats or problems as well.

  • ONLY add hardware that you have TESTED. Don't add hardware just because you think it might work.
  • Please add hardware into tables.
  • This is for pre-release 10.8 builds only.

For how to edit the Wiki, please see this thread. Thank you!

You're looking for an Installation guide? see here




Hardware Name Chipset Notes Patches Used
P7H55D-M EVO Intel H55 System:
  • CPU: Intel Core i5-650
  • Memory: Kingston DDR3-1333 2 x 2 GB
  • HDD: Samsung 500 GB SATA
  • Video: GeForce GT 9500 1024 MB
  • Audio: Realtek ALC889 onboard
  • Ethernet: Realtek Gigabit Ethernet onboard
  • Wireless: D-Link DWA-556 (recognized as AirPort)
  • Bluetooth: D-Link DBT-122
  • Shutdown: Yes
  • Restart: Yes
  • Sleep: Yes (see comments)


  • Chameleon 2.1 r1823
  • SMBIOS iMac11,1 with new serial number to make iCloud and App Store work

  • FakeSMC
  • ALC8xxHDA
  • AppleHDA Rollback
  • HDAEnabler ALC889
  • Realtek Gigabit Ethernet

How to make 'sleep' work:

  • You should NOT install USB 3.0 kext if you want 'sleep' to work.
  • You must add the following lines to /Extras/org.chamaleon.Boot.plist:
P5W DH Deluxe Intel 975X Intel ICH7R System Configuration:
  • Intel E6400 CPU 2,13 GHz @ Overclocking 2,67 GHz, FSB 1333 Mhz, BUS 333 Mhz
  • ATI Radeon X1800XT (256MB DDR3 256Bit) 32/64 Bit + Dual Display Work !
  • Kit DDR2 4GB (4x1) 800 MHz Ram OCZ Platinum
  • Install Method: RETAIL USB_Sata HD Image

Components Status:

  • Audio ALC882M Stereo Line-Out x3, Line-In x1, Integrated microphone x1, Headphones Integrated x1, S/PDIF out x1
  • Ethernet - Native Works (Marvell Yukon Gigabit)
  • Wireless RTL8187 b/g - Works (Native Patch REALTEK) [http://eurico.net/files/driver_wlan_usb_snow.zip
  • USB 2.0 - Native Work
  • USB 3.0 PCIe (LACIE) - Native Work "SUPER SPEED"
  • IDE - Natine Work
  • E-SATA 3GB - Natine Work
  • Shutdown/Reboot - Work (SleepEnabler)
  • "PRIVATE" kext edited by PIEROF81


Graphic Card

P5K SE/EPU P35/ICH9 System Configuration:
  • CPU: Intel Core 2 Duo E8400 @ 3.6GHz
  • GPU: GeForce 8800GT 512MB
  • RAM: 2x2GB DDR2 Kingston HyperX
  • ODD: Sony Optiarc AD-7243S SATA
  • Keyboard: USB
  • Mouse: USB

Components Status:

  • All works


Hardware Name Chipset Notes Patches Used
GA-P31-DS3L Intel P31 ICH7 Hardware:
  • Intel Core2Duo
  • ATI HD5670


  • Chameleon RC5 Trunk 1822
  • Retail install from 10.8. Everything works: Speedstep, Ethernet, Sleep, Audio, Graphics
  • FakeSMC ver. 2.1 (IntelCPUMonitor, IntelThermal, SuperIOFamily)
  • AppleHDA [1]
  • ElliottForceLegacyRTC

Binpatched AppleRTC.kext to prevent CMOS reset.

THE DSDT, org.cham.boot, smbios [2]

GA P41T-D3P Intel® G41 + ICH7 Chipset Hardware:
  • Intel Core2QuadQ9550 2.83 GHz.
  • EVGA Nvidea 9800GTX.


  • Chameleon RC5 Trunk 1820
  • Retail install from 10.8. Everything works: Speedstep, Audio, Graphics, Wifi antenna, Ethernet
  • SMBIOS Mac Pro 3.1
  • FakeSMC
  • AppleHDA AlC889 internal and Creative Audigy 4Pro internal/External.(MultiBeast 4.2.1,ALC 8xx, Apple HDA Rollback, HDA Enabler 889 / Kxproject)
GA X58A-UD7 Intel® ICH10 Chipset Hardware:
  • Intel Core i7 920
  • Sapphire 5770.


  • Chameleon RC5 Trunk 1822
  • Install from Appstore 10.8. Everything works: Speedstep, Audio, Graphics, Ethernet
  • SMBIOS Mac Pro
  • FakeSMC
  • AppleHDA
  • RealtekR1000SL

Tutorial: Video Tutorial


Hardware Name Chipset Notes Patches Used

Intel DH55HC H55 System Configuration:
  • CPU: Intel core i3 540 @ 3.07GHz
  • GPU: Zotac GeForce 8400GS 512MB DDR3
  • RAM: 2x2GB DDR3 1333MHz Kingston
  • ODD: LG GH22NS30
  • Keyboard: USB
  • Mouse: USB


  • All works well (onboard sound - not tested as I use a Creative SoundBlaster USB soundcard)
  • installed to a 500GB laptop drive (5200rpm) so performance is somewhat slow but certainly good enough to test Mountain Lion
  • Zotac GeForce 8400GS works OOB with graphics enabler=yes. Tested HDMI only, resolution at 2048x1152
  • As with Lion, at shutdown, the OS shuts down, but the computer stays running (seems to be a problem with Intel boards)
  • Followed tutorial Here
  • FakeSMC.kext
  • NullCPUPowerManagement.kext
  • SMBIOS Mac Pro 3.1
  • Used Multibeast for Lion to install Intel network
DX58SO Intel X58 System Configuration:
  • CPU: Intel core i7 950 3.01GHz
  • GPU: Radeon Sapphire 5770 Vapour-x 1GB DDR5 (Works with GE = YES or NO)
  • RAM: 6GB DDR3 1333MHz
  • Wifi- DLink DWA 125 (Ralink Driver)
  • Retail Install
  • BootLoader : Chamaleon 2.1 RC5 r1820
  • SMBIOS: MacPro 4.1

Boot Flags:

  • GraphicsEnable=Yes
  • GeneratePStates=Yes
  • GenerateCStates=Yes
  • arch=i386



  • AppleHDA(patched)
  • AppleIntel8256X
  • HDAEnabler


  • FakeSMC
  • Legacy889HDA
  • IOAHCIBlockStorageInjector
  • IntelCPUMonitor (it´s not necessary, only for Monitoring CPU temps)
  • RadeonMonitor (it´s not necessary, only for Monitoring GPU temps)


  • Everything works flawless. Video, Audio, Lan , Firewire, Wifi
  • Power Management works with no Kext.
  • Shutdown and Sleep works with no Kext.
  • Geekbench: 11.000 aprox.
  • Cinebench: 6 aprox.
  • GPU 37 Fps


  • DsdtAutoPatcher link
Tick.png Tick.png

Graphics Cards

Please specify if your card is AGP, Integrated, PCI or PCI-E.
Also, place chip and board manufacturer in their respective column.


Model Board-Manufacturer Notes QE Output Dual display 32/64bit working with patch
Yes VGA/DVI/HDMI Yes Yes Not Tested


Model Board-Manufacturer Notes QE Output Dual display 32/64bit working with patch
Yes VGA/DVI/HDMI Yes Yes Not Tested
8400 GS 512GB DDR3 Zotac works OOB with GraphicsEnabler=Yes Tick.png tested HDMI only ? Tick.png Tick.png

Network Cards


Interface Standard Device Manufacturer Chipset Notes 32/64bit working with patch
Yes Yes

Wired (Ethernet)

Interface Standard Device Manufacturer Notes 32/64bit working with patch
Yes Yes

Sound Cards

Interface Hardware Name Manufacturer Notes 32/64bit working with patch
USB Sound Blaster X-Fi Go! PRO USB Sound Card Creative Labs Plug'n'Play, no configuration required Tick.png Tick.png

Other Accessories

Type of Accessory Item Description Manufacturer Notes 32/64bit working with patch
Yes Yes
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