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C-States breaks sleep on my GA EP45-UD3P. I'm running the following configuration: Motherboard: GA EP45-UD3P, Rev. 1.6, FD BIOS Processor: Q6600 Memory: 8MB Kingston Value Ram DSDT fixes: TMR, HPET, RTC, CMOS, PCI Root, HDEF, EHCI, SBUS, SATA icon, Gigabyte Shutdown, PWRB, LPC, Boot on Wake fix (LPCB AG3E field) ep45_ud3p_fd.dsl.zip Kexts: FakeSMC Chameleon (recent build): GraphicsEnabler, GeneratePStates Runs at about 30-32 Celsius with SpeedStep. Even better, runs at 25-27 if I add C-States. Problem is sleep breaks when I add C-States, either via DSDT or Chameleon. System reacts to sleep key press, display shuts down and HDs spin down, but fans keep spinning, blue power light is on, and that little "chirp" and Motherboard LEDs flash bit never happens. System will not wake from this state, requires reset or holding power button in for four seconds for hard shutdown. I've been working my way through the Gigabyte DSDT thread, the Vanilla SpeedStep thread and a few others for the last few days but can't seem to turn anything up. Anyone heard of this before and can point me in the right direction? Sweet highly-vanilla rig now and just need to finish a few details