Abit BP6, User Manual

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Installing the Motherboard 2-13
User’s Manual
Table 2-2. PN1 and PN2 pin count name list
PIN Name Significance of signal PIN Name Significance of signal
PIN 1 Reset input PIN 1 +5VDC
PIN 2 Ground PIN 2 No connection
PIN 3 No connection PIN 3 Ground
PIN 4 +5VDC PIN 4 Keyboard inhibit Signal
PIN 5 Ground PIN 5 Ground
PIN6 Ground PIN6 LED power
PIN 7 Speaker data PIN 7 HDD active
PIN 8 No connection PIN 8 Power On/Off signal
PIN 9 +5VDC PIN 9 Ground
PIN 10 Suspend LED active PIN 10 Ground
PN1
PIN 11 No connection
PN2
PIN 11 Suspend signal
Let’s now see the I/O connectors that BP6 uses, and what their functions are.
FDC 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 (it’s a 3 1/2” drive used in
Japanese computer systems).
A floppy disk drive ribbon cable has 34
wires and two connectors to provide for the
connection of two floppy disk drives. After
connecting the single end to the FDC, 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.
Note
A red mark on a wire typically designates the location of pin 1. You need to align the
wire pin 1 to the FDC1 connector pin 1, then insert the wire connector into the FDC
connector.