44
ASUS P3W User’s Manual
Connectors
3. H/W SETUP
3. HARDWARE SETUP
21) Chassis Intrusion Alarm Connector (4-1 pin ACHA)
This connector is for a chassis designed for chassis intrusion detection. After-
market toggle switches may also be installed to the chassis panel or on any
removable components. Two wires should be available from the chassis to con-
nect to this. When any chassis component is removed, the contact should open
and the motherboard will record a chassis intrusion event. If the chassis intru-
sion alarm connector is not used, a jumper cap must be placed over pins 2 and 3
to prevent unnecessary power loss.
P3W Chassis Open Alarm Lead
ACHA
+5V
olt
(Power Supply Stand By)
Ground
Chassis Signal
1
1
01
01
®
P3W
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