* Go to the XPS 420 drivers page
* Look for Chipset
* Reinstall the Intel Chipset driver. When done, restart the XPS 420
Need further assistance? (In warranty systems only)
If the above troubleshooting steps do not resolve the issue, click the "Get Help Now" option at the bottom right to start a LIVE chat session. Ensure that you keep your PC/Monitor/accessory Service Tag available. If no Service Tag is found, have your Dell order number ready.
Where to find your Service Tag
Social Media Support, Community Manager
(If this reply helped you solved the issue, please remember to click the option Accept as Solution. Se a resposta recebida ajudou você a resolver o problema, lembre-se de clicar na opção Aceitar como solução.)