Asus Pundit-R350 - Manual (Page 64)

64 Chapter 4: Motherboard info
5. IDE connectors (40-1 pin PRI_SIDE, PRI_XWIDE)
The PRI_XWIDE connector is for the primary master device (hard
disk drive) with the security feature. Attach the blue connector of the
40-pin cable to this interface, then attach the black connector to the
UltraATA100/66 primary master device (hard disk drive). The
PRI_SIDE connector is for the secondary master device (optical
drive). Configure the hard disk drive and the optical drive as
primary/secondary master device by adjusting their jumper settings.
Refer to their respective documentation for details.
®
IDE connector
NOTE: Orient the red markings
(usually zigzag) on the IDE
ribbon cable to PIN 1.
PRI_SIDE
PIN 1
See page 48 for details on the HDD security feature.
Pin 20 on the IDE connector is removed to match the covered hole on
the UltraATA cable connector. This prevents incorrect orientation when
you connect the cables.