For ThinkPad (T420, T420i, T420s, T420si, T520, T520i and) W520 systems with Microsoft Windows XP installed, there is an error message when installing the NVIDIA graphics driver. The installation of the graphics driver can not continue.
The following Lenovo systems running Microsoft Windows XP:
Two unknown video controllers are listed in Device Manager.
ThinkPad (T420, T420i, T420s, T420si, T520, T520i and) W520 systems include Optimus graphics technology from NVIDIA. Optimus technology is not supported with Microsoft Windows XP. To resolve this issue, the Optimus technology needs to be disabled in BIOS. The discrete NVIDIA graphics should instead be selected. Follow the instruction below to change the selected graphics.
Please note that if the "OS Detection for NVIDIA Optimus" option is enabled in BIOS, the appropriate graphics will be selected based on the installed operating system. If a supported operating system is installed, the Optimus technology will be enabled. Otherwise, the discrete graphics will be selected.
|Click here to see the ISV Certification page for ThinkPad W520.|