http://support.dell.com/support/systemsinfo/document.aspx?~file=/systems/dime520/en/sm_en/specs.htm
Type Sigmatel 9227 Audio six connectors for 7.1 support
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/?id=4ff076e5d925d8f714b88a1d3992796f89b45450
it is incorrect to use DELL_3STACK if your desktop have 6 jacks
http:// support. dell.com/ support/ systemsinfo/ document. aspx?~file= /systems/ dime520/ en/sm_en/ specs.htm
Type Sigmatel 9227
Audio six connectors for 7.1 support
https:/ /git.kernel. org/cgit/ linux/kernel/ git/tiwai/ sound.git/ commit/ ?id=4ff076e5d92 5d8f714b88a1d39 92796f89b45450
it is incorrect to use DELL_3STACK if your desktop have 6 jacks