Asus P4B533-E - Manual (Page 62)

2-34 Chapter 2: Hardware information
16. Front panel line in connector (5-pin FP_LINE_IN)
(on audio models only)
This connector is for a front panel Line In jack with a return path for
automatic signal switching. By default, pins 1-2 and pins 3-4 are
shorted with jumper caps to make the Line In source available from the
rear panel Line In jack. Remove the jumper caps if you desire to install
the Intel front panel audio cable.
17. Digital audio connector (6-1 pin SPDIF) (on audio models only)
This connector is for the bundled S/PDIF audio module that allows
digital instead of analog sound output. Connect one end of the audio
cable to the S/PDIF In/Out connector on the motherboard, and the
other end to the S/PDIF module.
P4B533-E
®
P4B533-E Digital Audio Connector
SPDIF
GND
+5V
SPDIF_IN
SPDIF_OUT
GND
1
P4B533-E
®
P4B533-E LINE_IN Connector
FP_LINE_IN
AGND BLINE_LIN_L ALINE_LIN_L BLINE_IN_R LINE_IN_R