7ZMMHC Motherboard
25
J16: CNR Select
Please note:
J16: 1-2 close: If you use software audio(onboard CODEC only), your modem riser
must be “Secondary”. J16: 2-3 close: If you don’t use onboard software audio, your
audio/modem riser must be “Primary”. Mainboard’s software audio will be disabled.
There are two types of CNR card in the market, Primary and secondary. If your CNR
card is primary, J16 should be set to 2-3, if you have secondary CNR card J16 should
be set to 1-2.
Warning! If Primary CNR card is used, on-board CODEC will be disabled.
1
Pin No.
Definition
1-2 close Secondary
2-3 close Primary
JP21: Case Open
Pin No. Definition
1 Signal
2 GND
1
