Note the and Provider listed under "Devices" and "Drivers"—this is your specific hardware model. Where to Download Official Free Drivers
: Official Windows XP drivers are available directly from the Realtek High Definition Audio Codecs page. Sound Driver For Windows Xp Free
Most major manufacturers still host legacy drivers on their support portals: Note the and Provider listed under "Devices" and
: Provides Realtek audio drivers for various ThinkCentre and ThinkStation models on Lenovo Support . Sound Driver For Windows Xp Free