is your bois Modded if so then yea and it can't hurt to try the patcher if the driver won't install.
by not installing what do you mean ? it installs but after reboot the drivers don't load right. if so then try the patcher: click it, it should say it found a bunch stuff hit ok . hit ok again then reboot, if it worked the your drivers after reboot are installed and should load.
an you mean this
https://www.monitortests.com/forum/Thread-AMD-ATI-Pixel-Clock-Patcher when you say the atig patcher.