Asus AT3GC-I - Manual (Page 22)

9. Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that supports
either High Definition Audio or AC`97 audio standard. Connect one end of the front
panel audio I/O module cable to this connector.
AT3GC-
I
AT3GC-I Analog front panel connector
AAFP
PIN 1
GN
D
PRESENCE# SENSE1_RETUR SENSE2_RETUR
PORT1
L
PORT1
R
PORT2
R
SENSE_SEND
PORT2
L
HD-audio-compliant
pin definition
PIN 1
AGND NC NC NC
MIC
2
MICPWR
Line out_
R
NC
Line out_
L
Legacy AC’97
compliant definition
If you want to connect a high-definition front panel audio module to this connector, ensure
that the Front Panel Support Type item in the BIOS is set to [HD Audio]. If you want to
connect an AC97 front panel audio module to this connector, set the item to [AC97]. See
section 2.4.5 Onboard Devices Configuration for details.
10. Chassis intrusion connector (4-1 pin CHASSIS)
This connector is for a chassis-mounted intrusion detection sensor or switch. The
chassis intrusion sensor or switch sends a high-level signal to this connector when a
chassis component is removed or replaced. The signal is then generated as a chassis
intrusion event.
By default , the pin labeled “Chassis Signal” and “ Ground” are shorted with a jumper
cap. Remove the jumper caps only when you intend to use the chassis intrusion
detection feature.
AT3GC-
I
AT3GC-I 240-pin Chassis intrusion connector
GND
Chassis Signal
+5VSB_MB
CHASSIS
Chapter 1: Product introduction 1-13