Computer Hardware User Manual

1-16 Chapter 1: Product introduction
2. Floppy disk drive connector (34-1 pin FLOPPY1)
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.)
A7N8X-VM
NOTE: Orient the red markings o
n
the floppy ribbon cable to PIN 1
A7N8X-VM/400 Floppy Disk Drive Connector
PIN 1
FLOPPY1
1.12 Connectors
This section describes and illustrates the connectors on the motherboard.
1. IDE connectors (40-1 pin PRI_IDE, SEC_IDE)
This connector supports the provided UltraDMA133 IDE hard disk ribbon
cable. Connect the cable’s blue connector to the primary (recommended) or
secondary IDE connector, then connect the gray connector to the
UltraDMA133 slave device (hard disk drive) and the black connector to the
UltraDMA133 master device.
A7N8X-VM
A7N8X-VM/400 IDE Connectors
NOTE: Orient the red marking
s
(usually zigzag) on the IDE
ribbon cable to PIN 1.
SEC_IDE
PIN 1
PRI_IDE
Pin 20 on each IDE connector is removed to match the covered hole
on the UltraDMA cable connector. This prevents incorrect orientation
when you connect the cables.
For UltraDMA133 IDE devices, usea 40-pin 80-conductor cable.