Asus P4B266 Uživatelská příručka stáhnout pdf (Strana 49)

ASUS P4B266 motherboard user guide

2-27

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.

P4B266

NOTE: Orient the red markings on

the floppy ribbon cable to PIN 1.

P4B266 Floppy Disk Drive Connector

PIN 1

FLOPPY

P4B266

P4B266 Chassis Alarm Lead

CHASSIS

+5VSB_MB

Chassis Signal

GND

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 127 128

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Asus P4B266 Uživatelská příručka Strana 49