Hi There.. out of curiosity what distro or method are you using? i am using retail install via DFE's boot 132 with the new chameleon 2.0RC. All needed kexts loaded in extra folder with exception of audio.

I have the same mobo running in a second system (not the one in my sig), the processor speed after going to 10.5.7 shows correctly but with the unknown tagged on the end.. haven't figured that out yet. My Ram shows correctly

For audio i always use taruga 1.20 HDA patcher and the correct alc888.txt easy to find with google. Remember to go to sound in system prefs and make sure you have line out selected. Sometimes when installed it defaults to Headphones. I've tried efi etc but this method always seems to work well with good sound and takes like 5 sec to do...

Also needed (apart from the usual) was IONnetworking kext for time machine and i use EFI strings for gfx card (8800gts)

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Motherboard : Gigabyte MA78GM-S2H : CPU : AMD 5600+ : Memory : 2GB OCZ Fatality DDR2 : gfx : Nvidia 7600GS 512MB : Lawlessppc 10.5.4 updated to 10.5.5 : Voodoo Kernel : 2 x 500GB WD SATA HD (1 x System 1 x Time Machine) 1 x 80GB WD SATA (For testing) : SATA Liteon DVD-RW : Antec Sonata case : D-Link DBT-122 USB bluetooth Dongle :