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Chapter 1: Product introduction
13. LPT header
The LPT (Line Printing Terminal) header supports devices such as
a printer. LPT standardizes as IEEE 1284, which is the parallel port
interface on IBM PC-compatible computers.
14. Speaker header
The 4-pin header is for the chassis-mounted system warning speaker. The
speaker allows you hear system beeps and warnings.
15. 10-1 pin System Panel header
This header supports several chassis-mounted functions.
•
System power LED (2-pin +PWR_LED-)
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.
•
Power button/Soft-off button (2-pin PWR_BTN)
This header is for the system power button.
•
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.
16. 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 certificates, passwords, and data. A TPM system also helps
enhance network security, protects digital identities, and ensures platform
integrity.
+5V GND GND Speaker Out
SPEAKER
PIN 1
PIN 1
PWR_BTN
PWR_LED-
PWR GND
HDD_LED-
Ground
HWRST#
(NC)
F_PANEL
+PWR_LED-
+HDD_LED- RESET
PIN 1
O_LPT_XSTB#_R O_LPT_XPD0_R O_LPT_XPD1_R O_LPT_XPD2_R O_LPT_XPD3_R O_LPT_XPD4_R O_LPT_XPD5_R O_LPT_XPD6_R O_LPT_XPD7_R O_LPT_ACK#_R O_LPT_BUSY_R
O_LPT_PE_R
O_LPT_SLCT_R
O_LPT_XAFD#_R O_LPT_ERROR#_R O_LPT_XINIT#_R O_LPT_XSLIN#_R GND GND GND GND GND GND GND GND
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
