snd_ich(4) Intel ICH AC'97 and compatible bridge device driver


To compile this driver into the kernel, place the following lines in your kernel configuration file:
device sound device snd_ich

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf5:



The bridge driver allows the generic audio driver sound(4) to attach to Intel ICH AC'97 and compatible audio devices.

Some later chips, like ICH6/ICH7, depending on wiring can instead implement newer Intel HD Audio specification, which is supported by snd_hda4 driver.


The driver supports the following audio devices:

  • AMD 768
  • AMD 8111
  • Intel 443MX
  • Intel ICH
  • Intel ICH revision 1
  • Intel ICH2
  • Intel ICH3
  • Intel ICH4
  • Intel ICH5
  • Intel ICH6
  • Intel ICH7
  • NVIDIA nForce
  • NVIDIA nForce2
  • NVIDIA nForce2 400
  • NVIDIA nForce3
  • NVIDIA nForce3 250
  • NVIDIA nForce4
  • SiS 7012


The device driver first appeared in Fx 4.2 .


This manual page was written by An Jorge Mario G. Mazo Aq [email protected] .