Asus P1-AH2 - Manual (Page 55)

4-6 Chapter 4: Motherboard info
3 IDE connectors (40-1 pin PRI_IDE)
The onboard IDE connectors are for Ultra DMA 133/100/66 signal
cable(s). There are three connectors on each Ultra DMA 133/100/66
signal cable: blue, black, and gray. Connect the blue connector to
the motherboardʼs IDE connector, then select one of the following
modes to configure 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 Cable 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_ID
E