4.IDE connector (40-1 pin PRI_IDE)

The onboard IDE connector is for Ultra DMA 133/100/66 signal cable. There are three connectors on each Ultra DMA 133 / 100 / 66 signal cable: blue, black, and gray.

Connect the blue connector to the motherboard’s IDE connector, then select one of the following modes to configure your device(s).

 

Drive jumper setting

Mode of device(s)

Cable connector

Single device

Cable-Select or Master

-

Black

 

Cable-Select

Master

Black

Two devices

Slave

Gray

 

Master

Master

Black or gray

 

 

Slave

Slave

 

 

• Pin 20 on the IDE connector is removed to match the covered hole on the Ultra DMA cable connector. This prevents incorrect insertion when you connect the IDE cable.

• Use the 80-conductor IDE cable for Ultra DMA 133/100/66 IDE devices.

If any device jumper is set as “Cable-Select”, ensure that all other device jumpers have the same setting.

M3N78-CM IDE

_PRI

M3N78-CM IDE Connector5.Optical drive audio in connector (4-pin CD)

This connector allows you to receive stereo audio input from sound sources such as a CD-ROM, TV tuner, or MPEG card.

M3N78-CM

 

CD

(black)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ground ChannelAudio Left

 

Right

 

ChannelAudio

 

 

 

Ground

M3N78-CM Internal Audio Connector

1-20

ASUS M3N78-CM