Working great here! Geekbench full speed and even better than Lion with Award BIOS. AppStore, iTune Store, iCloud, native Network with WOL, Sleep and wake with bluetooth keyboard, Graphic@2560x1440 with acceleration.
After many reinstall, trial & error attempts cycles with MB 4.6.1, which apparently is not suitable to use with ML. Until MacMan pushes out 5.0.0 I designed this final step by step plan for my build:
1. First reboot straight after fresh installation, run migration assistant to restore data from TimeCapsule on LAN. Unchecked options for Other system files so to exclude 3rd party kexts from previous built, etc.
2. Graphic. Rename to backup ATI6000.kext & framebuffer.kext. Kextbeast to install custom kexts and framebuffer.kext by nataly1967. I didn't follow his advise to use GE=Yes, ATIConfig & AtiPorts setting and instead went for GE=No. After step 6 I confirmed GL/QE acceleration.
3. Audio. Rename to backup appleHDA.kext. Kextbeast to install custom ALC889_AppleHDA_10.8_GM_V3+HDEF kext and HDAEnabler889 kext by Sergey_Galan
4. MB 4.6.1 minimal selection. Only check option for:
Trim Enabler (essential otherwise ML reports no Trim support on SSD)
GE=No
SSDT=i7
BootLoader (essential to create .plist in /extra for Chimera 1.11 standalone to install)
System Profile 3,1 (essential)
BootLoader Theme
Don't check EasyBeast, User DSDT, System Util, and anything that is not absolutely necessary
5. Install Chimera 1.11.0 over Chimera 1.10.0 from MB 4.6.1 (1.11.0 might be not necessary but why not)
6. Reboot to finish.
Geekbench score for i7 2600s in this build is 10,440 now compare to when it was 9940 with Lion. An actual improvement without OC. I think ML handle turbo better than Lion.
N.B. The graphic kext I used is for Asus ATI 6670 1024MB
N.B.2 Step 1 could have been done after Step 6 but I had experience where after MB the network couldn't detect TimeCapsule and so when ahead to do it first since the native network driver detect it and restore at 100+MB/s. Luckily after the final time the network was not messed up by MB 4.6.1.
Wishing you all with good result like this build
Enjoy hackintoshing everyone!