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1-6
Chapter 1: Product introduction
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Chassis intrusion header (2-pin CHASSIS)
This header is for a chassis-mounted intrusion detection sensor or switch. Connect one
end of the chassis intrusion sensor or switch cable to this header. The chassis intrusion
sensor or switch sends a high-level signal to this connector when a chassis component
is removed or replaced. The signal is then generated as a chassis intrusion event.
18. Thermal Sensor header
This header is for the thermistor cable that allows you to monitor the
temperature of your motherboard’s critical components and connected
devices.
19. Thunderbolt header
This header is for the add-on Thunderbolt I/O card that supports Intel’s
Thunderbolt Technology, allowing you to connect up to six Thunderbolt-
enabled devices and a DisplayPort-enabled display in a daisy-chain
configuration.
20. 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.
21. BIOS FlashBack
TM
LED
The FlashBack™ LED lights up or blinks to indicate the status of the BIOS FlashBack™.
PIN 1
FORCE_PWR
GND
SLP_S3# SLP_S5#
GND
RTD3_SW
I2C_SCL I2C_SDA I2C_IRQ# RTD3_POWER_EN S_SLP_S0#_IDLE PERST_N WAKE#
TB_HEADER
PIN 1
T_SENSOR
SENSOR IN
GND