15
Installation
3.6 Connectors, Headers, and Ports
This motherboard contains IDE, floppy, power connector, front panel, and additional connectors.
3.6.1 Primary IDE Connector (J32, 39-pin block, Black)
This connector supports two primary channel IDE devices as well as the LS120 floppy, Zip, CD-ROM, and DVD-
ROM drives via a ribbon cable. When two IDE devices are installed using the primary IDE connector, make sure
that the second IDE device is set to slave mode as indicated in the device’s manual.
3.6.2 Secondary IDE Connector (J30, 39-pin block, White)
This connector supports two secondary channel IDE devices as well as the LS120 floppy, Zip, CD-ROM, and
DVD-ROM drives via a ribbon cable. When two IDE devices are installed using the secondary IDE connector,
make sure that the second IDE device is adjusted to slave mode as indicated in the device’s manual.
Warning:
When you connect a ribbon cable to these ports, you must orient the cable connector so that the PIN
1 edge of the cable is at the PIN 1 edge of the on-board connector.
3.6.3 Floppy Drive Connector (J40, 33-pin block)
The FDC sub-system can control three types of floppy drives (1.2, 1.44, and 2.88 MB) and/or compatible tape
drives. The floppy disk interface includes 48mA current support and inputs on the drive interface.
3.6.4 P4 Power Connector (J34, 20-pin and J20, 4-pin block)
This connector supports a P4 ATX power supply, which has a separate 12V connector. When connecting, make
sure the lock key matches the hook attached on a power supply cable. The power cord should be unplugged when
you connect it.
3.6.5 Front Panel Connectors (43, 17-pin block)
Front Panel includes connectors for the following six I/O connectors: Power
Switch, Power LED, Reset, Sleep, IrDA, and HDD LED.
IrDA Connector (Pins 9, 11, 13, and 15)
The motherboard offers an IrDA infrared connector that supports third party infrared modules. The case must
reserve space for the IR module if you want to use the IrDA function. This option supports wireless transmission
and reception of infrared data. The module mounts in a small opening on the system case that supports this
feature. The efficient distance is 100cm and the transfer rate is 115,200 bits/s.
Reset Switch Connector (Pins 5, and 7)
This connector supports the front panel case-mounted reset button. It is advised that the reset switch be used for
rebooting the system in order to extend the life of the system’s power supply.
HDD LED Connector (Pins 1, and 3)
The motherboard supports one 2-pin connector for connecting to front Panel Hard Disk activity LED indicator.
Sleep Switch Connector (Pins 10, and 12)
When the APM (Advanced Power Management) feature is enabled in the system BIOS and the operating system’s
APM driver is loaded, the system can enter the sleep (standby) mode in one of the following ways:
Optional front panel sleep/resume button
Prolonged system inactivity using the BIOS inactivity timer feature
The 2-pin connector supports a front panel sleep/resume switch, which must be a momentary SPST type that is
normally open
Power Switch Connector (Pins 6, and 8)
This connector supports the ATX case-mounted Power Switch, which in turn supports System Suspend function.
When the BIOS sets the Power Button function to “Suspend”, the system can be set to the suspended mode once
you push the power switch for no longer than 4 seconds. If the power switch is pushed down for over 4 seconds,
the system will be totally powered off. When this BIOS setting sets to “Instant-off”, then Power Switch function
work as a regular power switch.
HDD LED
RESET
PWRLED
PWR
SLEEP
IrDA
