1-6
17. Thunderbolt™ header
The Thunderbolt™ header allows you to connect an add-on
Thunderbolt™ I/O card that supports Intel®’s Thunderbolt™
Technology, allowing you to connect Thunderbolt™-enabled
devices to form a daisy-chain conguration.
• The add-on Thunderbolt™ I/O card and
Thunderbolt™ cables are purchased separately.
• Please visit the official website of your purchased
Thunderbolt™ card for more details on compatibility.
The Thunderbolt™ card can only be used when installed to the PCIEX16_2 slot. Ensure to
install your Thunderbolt™ card to the PCIEX16_2 slot.
18. BIOS FlashBack
TM
LED
The BIOS FlashBack™ LED lights up or blinks to indicate the status of
the BIOS FlashBack™.
Scan the QR code for more information on BIOS FlashBack
TM
function.
19. 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.
PIN 1
FORCE_PWR
SLP_S3#
SLP_S5#
GND
RTD3_SW
I2C_SCL
I2C_SDA
I2C_IRQ#
RTD3_POWER_EN
NC
PERST_N
WAKE#
TB_HEADER
• Chassis intrusion header (CHASSIS)
The 2-pin header allows you to connect the chassis-mounted intrusion detection
sensor or switch. The chassis intrusion sensor or switch sends a high-level signal
to the header when a chassis component is removed or replaced, the signal is then
generated as a chassis intrusion event.
Chapter 1: Product Introduction
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