Don't have ACPI_SMC_PlatformPlugin.kext in either of my SL builds.

Running a dsdt.aml on one but not the other and have not notice a difference in the two builds.

I have shutdown on one build but not sleep on both. I think it goes to sleep by itself but the fans stay on If I try a force sleep through the menu or by using the power button it goes to sleep (fans running) but I can't wake it up.

For your 9600 GT have you tried NVdarwin?

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Gigabyte EX58-UD5 - i7 920 @ 3.2 GHx - eVGA 8800GT
Asus P5Q Deluxe - E8400 @ 3.6 GHz - Asus 7900GT
iMac 2.2 GHz - 4 MB

No I haven't as I am still unsure about a couple fo things...

First, I am ONLY able to boot using -f flag (PC EFI 9), otherwise, although no KP, boot just hangs. What is -f flag ? What does this symptom suggest to you?

about DSDT.. what should be happening ?

I only notice two thing with DSDT, my ram speed read correct in "about my Mac" and that final boot stages is much quicker. But still, without -f flag on boot ot behaves the same.

Isnt DSDT supposed to tell Snow I've got x,y,z hardware ? and having the same HW as Apple, should my GFX card show up correctly... With or without DSDT, it finds I've got an Nvidia card, but no QE/CI info at all (not present ?!) , says it has 32mb ram, etc...

I mean, when I am finally starting to undertand DSTS, I'm blown back.

I cannot make Chameleon 2 see my DSDT in Extra folder (nor SL root drive) - I "know" because my ram go back to reading 667mhz instead of 1066... Plus, Chaneleon 2 only boot with -v -x32 -f ... without -x32 or -f it will not boot.

How come Chameleon 2 only boot with 32bit and PC EFI 9 ok with 64 !?

This cat is one serious feline to tame! :P