Abit SG-71 User Manual page 45

Installing the Motherboard
Table 3-2. PANEL1 pin count name and function list
Pin Signal Name
HD_LED_P
1
FP PWR/SLP
2
3 HD_LED_N
GND
4
RST_SW_N
5
PWR_SW_P
6
RST_SW_P
7
PWR_SW_N
8
RSVD
9
No Pin
10
(12). FDD1 Connector
A red mark on a wire typically designates the location of pin 1. You need to align the wire pin 1 to the
FDD1 connector pin 1, and then insert the wire connector into the FDD1 connector.
Function
Hard disk LED pull up (330 ohm) to +5V
MSG LED pull up (330 ohm) to +5V
Hard disk active LED
Ground
Reset Switch low reference pull down (100
ohm) to GND
Power Switch high reference pull up (10000
ohm) to +5V
Reset Switch high reference pull up (1000
ohm) to +5V
Power Switch high reference pull down (100
ohm) to GND
Reserved (do not use)
No pin
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.
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 FDD1, 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
3-13
User's Manual