just noticed this thread is still active
would you please post your kexts and chameleon plist file?
i'm running dm4-3050us (identical), cant get it to boot without unishit
i barely got setup going by finding a patched ahci kext for the installer
http://www.osx86.net/guides-tutorials/19064-guide-getting-osx-installer-recognize-your-hard-drive.html
after that i'm pretty much stumped
thanks.