User’s Manual

1-6
17. 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
certicates, passwords, and data. A TPM system also helps enhance
network security, protects digital identities, and ensures platform integrity.
SPI TPM module is sold separately.
18. 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
flashes 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.
19. Thermal Sensor header
The Thermal Sensor header allows you to connect a sensor to monitor the temperature of the
devices and the critical components inside the motherboard. Connect the thermal sensor and
place it on the device or the motherboard’s component to detect its temperature.
The thermal sensor is purchased separately.
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 F2_SPI_CS1#_R 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
Chapter 1: Product Introduction