Abit SE6 User Manual page 18

2-10
PIN 8 No connection
PIN 9 VCC (+5VDC)
PIN 10 Suspend LED (-)
PIN 11 No connection
PIN 12 No connection
PIN 13 No connection
PIN 14 No connection
Now let's see the I/O connectors that the SE6
uses, and what their functions are.
(15) S1: Chassis Intrusion Header
This header is for the connection of chassis
intrusion detection.
(16) FDC1 Connector
This 34-pin connector is called the "floppy disk
drive connector". You can connect a 360K,
5.25", 1.2M, 5.25", 720K, 3.5'', 1.44M, 3.5" or
2.88M, 3.5" floppy disk drive. You can even
connect a 3 Mode floppy disk drive (a 3 1/2"
SE6
drive used in Japanese computer systems).
A floppy disk drive ribbon cable has 34 wires
and two connectors to provide the connection of
two floppy disk drives. After connecting the
single end to the FDC1, connect the two
connectors on the other end to the floppy disk
drives. In general, people only install one floppy
disk drive on their computer system. The
connector attached to the longer length of
ribbon should be attached to the motherboard
connector.
Note: A red mark on a wire typically
designates the location of pin 1. You need to
align pin 1 of the wire to pin 1 of the FDC1
connector and then insert.
(17) IDE1 and IDE2 Connectors
An IDE hard disk drive ribbon cable has 40
wires and two connectors to provide a
connection for two IDE hard disk drives. After
connecting the single end to the IDE1 (or IDE2),
connect the two connectors on the other end to
the IDE hard disk drives (or CD-ROM drive,
LS-120, etc.). Again the connector attached to
the longer ribbon length should be attached to
the motherboard.
Before you install a hard disk, there are some
things you need to be aware of:
"Primary" refers to the first connector on the
motherboard; that is, the IDE1 connector on
the motherboard.
"Secondary" refers to the second connector
on the motherboard; that is, the IDE2
connector on the motherboard.
Chapter2