Asus TUF GAMING B450M-PRO S Instruction Manual page 15

15. 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.
16. 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.
17. Q-LEDs
The Q-LEDs check key components (CPU, DRAM, VGA, and booting devices) during the
motherboard booting process. If an error is found, the critical component's LED stays lit up
until the problem is solved.
The Q-LEDs provide the most probable cause of an error code as a starting point for
troubleshooting. The actual cause may vary from case to case.
18. BIOS FlashBack
The FlashBack™ LED lights up or blinks to indicate the status of the
BIOS FlashBack™.
Scan the QR code for more information on BIOS FlashBack
function.
ASUS TUF GAMING B450M-PRO S
LED
TM
TPM
F_PANEL
+PWR_LED-
PIN 1
+HDD_LED-
TM
PIN 1
PWR_BTN
RESET
1-5