Asus M3N78-CM User Manual download pdf (Page 30)

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 congure your device(s).

Drive jumper setting Mode of device(s) Cable connector

Single device Cable-Select or Master - Black

Two devices

Cable-Select

Master Black

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.

5. 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

IDE Connector

PRI_IDE

M3N78-CM

Internal Audio Connector

(black)

Right Audio Channel

Left Audio Channel

Ground

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Asus M3N78-CM User Manual Page 30