0 chapter 2: hardware information, P5b chassis intrusion connector chassis, P5b front panel audio connector – Asus P5B User Manual
Page 54: Aafp

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Chapter 2: Hardware information
10. 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 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.
R
P5B
P5B Chassis Intrusion Connector
CHASSIS
+5VSB_M
B
Chassis Signal GND
(Default)
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. Connect one end
of the front panel audio I/O module cable to this connector.
• 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 AC’97. 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 setup to [HD Audio]. See section ..5
Onboard Device Configuration for details.
R
P5B
P5B Front Panel Audio Connector
HP_HD
MIC2_L
HP_R
HP_L
MIC2_JD
Jack_Sense
MIC2_R
PRESENSE#
AGND
AAFP
Legacy AC’97-compliant
pin definition
NC
MIC2_L
Line out_R
Line out_L
NC
NC
MIC2_R
NC
AGND
Azalia-compliant
pin definition