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ASUS P4B-M motherboard user guide
2-29
Figure 2-40 Digital Audio Connector
12. Digital audio connector (6-1 pin SPDIF_C)
(optional)
This connector connects an SPDIF audio module that allows digital
instead of analog sound output. Connect one end of the audio cable to
the SPDIF_C connector on the motherboard, and the other end to an
SPDIF module that you purchased separately.
®
P4B-M
P4B-M SERIRQ Connector
SERIRQ_CON
SERIRQ
GND
13. Serial IRQ connector (2-pin SERIRQ_CON)
(optional)
This connector connects the serial IRQ onboard. Some PCI cards,
such as those with PCMCIA function, require this feature.
Figure 2-41 Serial IRQ Connector
®
P4B-M
P4B-M Digital Audio Connector
SPDIF Module
SPDIF_C
GND
+5V
SPDIF_IN
SPDIF_OUT
GND
1
The SPDIF audio module does not come with the motherboard
package. This module is purchased separately.