VIA Technologies Mini-ITX User Manual page 29

DOC BIOS Select (J4)
This jumper enables or disables the Disk on Chip (DOC) BIOS Select
Function. The DOC function is not a standard option on this mainboard
and is a manufacturing option only. Therefore the DOC function may not
be present on the mainboard you have purchased.
RCA Video or S/P DIF Select (J11)
This jumper selects either RCA Video or S/P DIF as the enabled function
on the dual purpose port.
1
1-2: Disable
2-3: Enable
3 1
4 2
1-2: RCA Video
3-4: S/P DIF
2-17
Hardware Setup