| File Package | INF Version | Link |
| View Details | 07/14/2003,6.13.10.6109 | ftp://ftp.higrade.com/Drivers/Notebook/1556(c7000i)/Audio.zip Check Wayback Machine |
| View Details | 09/25/2003,6.13.10.6112 | ftp://ftp.higrade.com/Drivers/Notebook/1557-C7000/Audio_Cirrus/A4C11D1W.zip Check Wayback Machine |