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4-6 Chapter 4: Motherboard info
2. IDE connectors (40-1 pin PRI_IDE)
The onboard IDE connectors are for Ultra DMA 100/66/33 signal cables.
There are three connectors on each Ultra DMA 100/66/33 signal cable:
blue, black, and gray. Connect the blue connector to the motherboard’s IDE
connector, then select one of the following modes to congure 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 100/66/33 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
Slave
Black
Gray
Master
Slave
Master
Slave
Black or gray
R
IDE Connector
PRI_IDE