Read Instructions Carefully
ASUS radeon 5550 chipset ..
Tested on ASUS EAH 5550 Silent
Full acceleration and resolution .. (on my system: double monitor desktop!)
DVI : WORKING
Audio ON HDMI : NOT TESTED
AMDRadeonAccelerator.kext & ATI5000Controller.kext
to install via kext utilities.
Ati config =NO ( but.. try yourself)
Can be tested on other-versions of Mac OS X too
Run this command on terminal after installation (be-careful with the words)
sudo rm -rf /System/Library/Caches