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ASUS P4S800-MX motherboard user guide
1-23
13. Chassis intrusion connector (4-1 pin CHASSIS)
This lead is for a chassis designed with intrusion detection feature. This
requires an external detection mechanism such as a chassis intrusion sensor
or microswitch. When you remove any chassis component, the sensor triggers
and sends a high-level signal to this lead to record a chassis intrusion event.
By default, the pins labeled “Chassis Signal” and “Ground” are shorted with a
jumper cap. If you wish to use the chassis intrusion detection feature, remove
the jumper cap from the pins.
P4S800-MX
P4S800-MX Chassis Alarm Lead
CHASSIS1
+5VSB_MB
Chassis Signal
GND
(Default
)
12. Serial connector (10-1 pin COM2)
This connector accommodates a second serial port using an optional serial
port module. Connect the COM2 module cable to this connector then install the
module to a slot opening at the back of the system chassis.
The COM2 module is purchased separately.
P4S800-MX
P4S800-MX Serial COM2 Bracket
PIN 1
COM2