24
P5F97/P5F103 User’s Manual
2. Fan Connectors
There is a fan connectors
on the P5F97/P5F103
mainboard for the CPU
cooling fans. The
connectors support fans of
12V DC/500mAMP (6
WATT) or less. When the
system goes into sleep
state, fan should
be shut down to eliminate audible noise and reduce power consumption.
You can monitor the fan speed by way of W83781D chip (optional) and
the fan must come with a tachometer output.
3. IrDA-compliant IR (Infrared) Connector
This 5-pin connector
connects to an
optional wireless
transmitting and
receiving infrared
module via a cable
and a bracket.
4. Floppy Drive Connector (One 34-pin Block)
A floppy disk drive ribbon cable has
34 wires and 2 connectors to support
2 floppy disk drives. The connector
with twisted wires always connects to
drive A, and the connector with
untwisted wires connects to drive B.
You must orient the cable connector
so that the pin 1(color) edge of the
cable is at the pin 1 of the I/O port
connector.
Chapter 2:Hardware Installation
Pin Assignment
1. GND
2. +12V
3. SPEED / RPM
1
2
3
IrDA
Module
Pin Assignment
1. +5V
2. IRM_IRR
3. IR Receiver
4. Ground
5. IR Transmitter
1
8
2
4
4
3
E
X
8
2
4
4
3
E
X
IR
8
2
4
4
3
E
X
