User Manual

2-13
Chapter 2: Motherboard information
7. Back Light power enable mode (BKLTEN_SEL)
Pins
1-2 (Default) High Active
2-3 Low Active
1 2
2 3
High Active
(Default)
Low Active
BKLTEN_SEL
8. Chassis intrusion header (4-1 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
connector. The chassis intrusion sensor or switch sends a low-level signal
to this connector when a chassis component is installed. The signal is then
generated as a chassis intrusion event.
PIN 1
3
4
3
4
CHASSIS
PIN 1
Chassis Intruder - Close Chassis Intruder - Open
3-4jumper closed
3-4jumper removed (Default)
Connector type
HEADER 1x3p, 2.54mm pitch, S/T
Connector type
HEADER 4p, K2, 2.54mm pitch