3-6
Chapter 3: Motherboard info
3. IDE connector (40-1 pin PRI_IDE)
The onboard IDE connector is for the Ultra DMA 100/66 signal cable. There
are three connectors on each Ultra DMA 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.
• 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 IDE devices.
If any device jumper is set as “Cable-Select,” ensure that 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
