Asus M4A78T-E - Manual (Page 52)

2-32 Chapter 2: Hardware information
Chapter 2
10. Chassis intrusion connector (4-1 pin CHASSIS)
This connector 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 high-level signal to this connector when a chassis component is removed or replaced. The
signal is then generated as a chassis intrusion event.
By default , the pin labeled “Chassis Signal” and “Ground” are shorted with a jumper cap. Remove
the jumper caps only when you intend to use the chassis intrusion detection feature.