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This is a Cirrus Logic Audio controller with legacy SoundBlaster compatibility for DOS applications

This chip is paired with a Intel AC'97 Audio controller with CS4297A codec, only one sound driver should be loaded, preferably the AC'97 driver.


  • Chipset: CS4281
  • Interface: PCI
  • PCI ID: 1013:6005

Linux ALSA driver

This sound chip is supported by the snd-cs4281 kernel module.

ThinkPads in which this chip may be found