towtol

I'm in the process of trying to get an HD 7950 to work with my Dell E6500. What I have so far is that I have to I perform a hot-plug at the start of Win7 x64 and the 7950 gets picked up in the Device Manager but the Catalyst driver doesn't load. Here's how I started... The Dell E6500 has 8GB ram. TOLUD=3.5GB. So I opted for the DSDT Override. 1. At Command Prompt typed in iasl -g to get dsdt.dsl file. 2. Modded dsdt.dsl to include "rand0" Dell E4300 core2duo mod. 3. At Command Prompt typed in iasl dsdt.dst to get dsdt.aml file. 4. At Command Prompt typed in asl /loadtable dsdt.aml. I view the Device Manager and I see a new "Large Memory" section that is > 0x100000000. The only way for the 7950 to even get recognized is... 1. Laptop powered down. 2. ExpressCard inserted but HDMI cable from PE4H disconnected from card. 3. Power supply on... 7950 fans spinning. 4. Power up laptop. 5. Insert HDMI cable into ExpressCard just as the Windows loading animation starts. I can load the lastest version of AMD Catalyst and it recognizes that there is a 7950 there and installs everything. The Device Manager shows the correct version of driver loaded but I just can't get around the iGPU HD GMA4500 from taking over. I have repeatedly uninstalled the GMA4500 but on every reboot it gets loaded back in and I get a message that states the AMD Driver can't be found. Something I do notice is that when I uninstall the iGPU the HD 7950 is loaded into the original Memory section not in the "Large Memory" section. Am I on the right track here with what I am doing? All help greatly appreciated!