4-12
Chapter 4: Motherboard info
12. Chassis intrusion connector (4-1 pin CHASSIS)
This connector is for a chassis-mounted intrusion detection sensor
or switch. Connect one end of the chassis intrusion sensor or switch
cable to this connector. 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 pins 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.
11. Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module
that supports either HD Audio or legacy AC’97 audio standard.
R
Front Panel Audio Connector
SENSE2_RETUR
POR
T1L
POR
T1R
POR
T2R
SEBSE_SEND
POR
T2L
SENSE1_RETUR
PRESENSE#
GND
AAFP
Legacy AC’97
compliant definition
NC
MIC2
Line out_R
Line out_L
NC
NC
MICPWR
NC
AGND
HD-audio-compliant
pin definition
R
Intrusion Connector
CHASSIS
+5VSB_M
B
Chassis Signal GND
(Default)
•
We recommend that you connect a high-definition front panel
audio module to this connector to avail of the motherboard’s high-
definition audio capability.
• By default, this connector is set to AC97 Audio. If you want to
connect a High Definition front panel audio module to this connector,
set the Front Panel Support Type item in the BIOS to [HD Audio].
See section “2.4.5 Onboard Device Configuration” for details.