Asus M3A78-CM User Manual download pdf (Page 30)

2. IDE connector (40-1 pin PRI_IDE)

The onboard IDE connector is for an 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).

• 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,” make sure all other device jumpers have the

same setting.

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

1. Floppy disk drive connector (34-1 pin FLOPPY)

This connector is for a Floppy Disk Drive (FDD) signal cable. Insert one end of

the provided FDD cable to this connector, then connect the other end to the signal

connector at the back of the oppy disk drive.

Pin 5 on the connector is removed to prevent incorrect cable connection when using an

FDD cable with a covered Pin 5.

1.10.2 Internal connectors

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Asus M3A78-CM User Manual Page 30