Asus H170I-PRO, User Manual, Page: 14 / 37

1-6 Chapter 1: Product introduction
14. 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.
AAFP
AGND NC 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
MIC2
MICPWR
Line out_R
NC
Line out_L
Legacy AC’97
compliant definition
• 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.
• If you want to connect a high-definition front panel
audio module to this connector, set the Front Panel
Type
item in the BIOS setup to [HD]. If you want to
connect an AC’97 front panel audio module to this
connector, set the item to [AC97]. By default, this
connector is set to [HD].
13. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/
PDIF) port. Connect the S/PDIF Out module cable to this connector,
then install the module to a slot opening at the back of the system
chassis.
SPDIF_OUT
+5V SPDIFOUT GND
15. TPM connector (14-1 pin TPM)
This connector supports a Trusted Platform Module (TPM) system,
which can securely store keys, digital certificates, passwords, and data.
A TPM system also helps enhance network security, protects digital
identities, and ensures platform integrity.
TPM
PIN 1
+3VSB
S_PCIRST#_TBD
GND
C_PCICLK_TPM
+3V +3V
PWRDWN F_SERIRQ F_FRAME# F_LAD3 F_LAD2 F_LAD1 F_LAD0
16. Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port
module cable to this connector, then install the module to a slot
opening at the back of the system chassis.
PIN 1
COM
DCD TXD GND RTS
RI
RXD DTR DSR CTS
17. RTC Battery header (2-pin BATT_CON)
This connector is for the lithium CMOS battery.
PIN 1
VBAT
GND
BATT_CON