cdelatorrejr

Hello, I am trying to extend the large memory for my eGPU (GeForce GTX 750 Ti) on my Dell Latitude XT3. My original problem was the code 12 error but I discovered I needed to do a DSDT override to extend the memory. I am using the DSDT Editor to make the changes but the I am getting error - Value above valid range - 0x0-0xFFFFFFFF. If anyone can give me pointers how to resolve the memory address issue, I'd be grateful. For reference I am attaching my DSDT.dsl. Thank you. dsdt(mod).zip