Asus P4S333 C User Manual - Page 46

Hardware information, Floppy disk drive connector 34-1 pin FLOPPY, Chassis open alarm

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3. Floppy disk drive connector (34-1 pin FLOPPY) This connector supports the provided floppy drive ribbon cable. After connecting one end to the motherboard, connect the other end to the floppy drive. (Pin 5 is removed to prevent incorrect insertion when using ribbon cables with pin 5 plug). FLOPPY NOTE: Orient the red markings on the floppy ribbon cable to PIN 1. P4S333 ® PIN 1 P4S333 Floppy Disk Drive Connector 4. Chassis open alarm lead (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. If you do not wish to use the chassis intrusion lead, place a jumper cap over the pins labeled "Chassis Signal" and "Ground" to close the circuit. CHASSIS +5VSB_MB Chassis Signal GND P4S333 ® P4S333 Chassis Alarm Lead 2-24 Chapter 2: Hardware information

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2-24
Chapter 2: Hardware information
3.
Floppy disk drive connector (34-1 pin FLOPPY)
This connector supports the provided floppy drive ribbon cable. After
connecting one end to the motherboard, connect the other end to the
floppy drive. (Pin 5 is removed to prevent incorrect insertion when
using ribbon cables with pin 5 plug).
4.
Chassis open alarm lead (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.
If you do not wish to use the chassis intrusion lead, place a jumper cap
over the pins labeled “Chassis Signal” and “Ground”
to close the
circuit.
P4S333
NOTE:
Orient the red markings on
the floppy ribbon cable to PIN 1.
P4S333 Floppy Disk Drive Connector
PIN 1
FLOPPY
P4S333
P4S333
Chassis Alarm Lead
CHASSIS
+5VSB_MB
Chassis Signal
GND