This is the email I received after calling and consulting with an HP engineer. The HP engineer said that these drivers are suitable for all notebooks in the HP Compaq V39XXTU series, such as: 3911tu, 3931tu, 3910, 3911, etc.
Below is the email content:
Dear HP User,
Hello! I am Engineer XXX from the HP Technical Support Center.
The driver link below is what you need. Please check it out.