The guide in Yosemite Laptop Guides for the ASUS G73JH is updated below. El Capitan changes noted in guide.
El Capitan users should remove the old BRCMPatchram.kext & AppleHDA5series.kext(replaced with G73JH.kext), update Clover, and use my config.plist w/ your own serial# or update yours to reflect the needed changes from herehttps://github.com/Maromi-/G73JH-OSX before installation, also Sleep/Wake and Shutdown are currently broken in El Capitan w/ USB.
El Capitan users should remove the old BRCMPatchram.kext & AppleHDA5series.kext(replaced with G73JH.kext), update Clover, and use my config.plist w/ your own serial# or update yours to reflect the needed changes from herehttps://github.com/Maromi-/G73JH-OSX before installation, also Sleep/Wake and Shutdown are currently broken in El Capitan w/ USB.