AOpen MX6E PLUS Manual page 20

Hardware Installation
2.2.6 Disable Onboard Sound Card
JS1 Disable Onboard
Sound Card
1-2 Enabled (default)
2-3 Disabled
2-6
If you want to install other sound card, you have
to disable the onboard sound card by setting this
jumper to Disabled.
JS1
1
2
3
Enabled (default)
JS1
1
2
3
Disabled