Yeah, sure, why not! 
2nd link is dsdt.aml for your board. You can add it at the and, it could fix number of things for you
Code:
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
Dont woory about it for now. First install Snow Leopard using first link.