Manuals and User Guides for Lenovo ThinkPad X40 Series. We have 34 Lenovo ThinkPad X40 Series manuals available for free PDF download: Hardware Maintenance Manual, Troubleshooting Manual, Guide De Maintenance Et D'identification Des Incidents, Service Und Fehlerbehebung, Руководство По Устранению Неполадок, Guía De Servicio Y De Resolución De Problemas, Manual De Assistência E Resolução De Problemas, Supplementary Manual, Guia De Serviço E Resolução De Problemas, Setup Manual, Install Manual