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2-24 Chapter 2: Hardware information
2. IDE connector (40-1 pin PRI_IDE, SEC_IDE)
The onboard IDE connector is for the 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 congure 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.
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
R
M2N4-SLI
M2N4-SLI
IDE Connectors
PRI_IDE
SEC_IDE
NOTE: Orient the red markings
(usually zigzag) on the ID
ribbon cable to PIN 1.
PIN1
PIN1
If any device jumper is set as “Cable-Select,” make sure all other device
jumpers have the same setting.