User’s Manual
1-4
Chapter 1: Product Introduction
13. S/PDIF Out header
This header is for an additional Sony/Philips Digital Interface (S/PDIF) port.
Connect the S/PDIF Out module cable to this header, then install the module to
a slot opening at the back of the system chassis.
14. SPI TPM header
This header supports a Trusted Platform Module (TPM) system with a Serial
Peripheral Interface (SPI), allowing you to securely store keys, digital
certicates, passwords, and data. A TPM system also helps enhance
network security, protects digital identities, and ensures platform integrity.
15. 20-5 pin System Panel header
This header supports several chassis-mounted functions.
• System power LED (2-pin PLED)
This 2-pin header is for the system power LED. Connect the chassis power LED cable
to this header. The system power LED lights up when you turn on the system power,
and blinks when the system is in sleep mode.
• Hard disk drive activity LED (2-pin HDD_LED)
This 2-pin header is for the HDD Activity LED. Connect the
HDD Activity LED cable to this header. The HDD LED lights up
or ashes when data is read from or written to the HDD.
• System warning speaker (4-pin SPEAKER)
This 4-pin header is for the chassis-mounted system warning
speaker. The speaker allows you to hear system beeps and
warnings.
• ATX power button/soft-off button (2-pin PWRSW)
This header is for the system power button. Pressing the power
button turns the system on or puts the system in sleep or soft-off mode depending on
the operating system settings. Pressing the power switch for more than four seconds
while the system is ON turns the system OFF.
• Reset button (2-pin RESET)
This 2-pin header is for the chassis-mounted reset button for system reboot without
turning off the system power.
SPI_TPM
PIN 1
T_SPI_MOSI
T_SPI_CLK
GND
F_BIOS_WP#_R
S_SPI_TPM_CS2#
S_SPI_TPM_IRQ#
F_SPI_HOLD#_R
T_SPI_MISO
F_SPI_CS0#_R
+3V_SPI
NC
S_PLTRST#
VCCSPI
PLED+
PLED-
PWRBTN#
GND
+5V
Ground
Ground
Speaker
HDD_LED+
HDD_LED-
Ground
RSTCON#
NC
PLED+
PLED-
PIN 1
PLED
PLED
SPEAKER
PANEL
HDD_LED
PWRSW
RESET
* Requires an ATX power supply
SPDIF_OUT
+5V
SPDIFOUT
GND