1-26 Chapter 1: Product introduction
• 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.
1.10.2 Internal connectors
1. 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).
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
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