DSDT fixes:

• all warnings and error from the original Gigabyte DSDT
• BIOS CMOS corruption under Snow Leopard
• USB-Device-Removal-Warning upon wakeup from Sleep for the EHCI ports
• UID of the PCI0 device to make the Chameleon GFX & Ethernet auto detection work
• missing "built-in" property for the ethernet ports to make Timemachine working (disabled per default)
• fixes Audio for mainboards with a Realtek 889A chip (disabled per default)
• ICH10R USB device-id patch for all P35 and EP35 mainboards
• Powerbutton fix. If enabled in Preferences pushing the Powerbutton puts the computer to sleep

The download contains:
DSDT.aml - fixed & patched & compiled DSDT. Ready to use! DSDT.dsl - the source of DSDT.aml DSDT_orig.aml - unmodified, original, binary DSDT DSDT_fixed.dsl - original DSDT without errors and warnings
Also check out the post at efixusers.com: http://www.efixusers.com/showthread.php?t=38