"Software error: A supported graphics card was not found in the system."
When trying to install the Intel® 815 Chipset Graphics Drivers on an Intel® 815 chipset family based system that has an AGP video card installed, this error will appear. This happens because the integrated graphics of this chipset are disabled when an AGP video card is installed. You should not install the Intel 815 chipset graphics drivers on a system that has an AGP video card installed or on a system based on the Intel 815EP chipset.
Intel® 815EP chipset systems
Do not install the Intel 815 Chipset Graphics Drivers on a system based on the Intel 815EP chipset.
This applies to: