Some pins are used for connectors or power sources. These are
clearly distinguished from jumpers in the Motherboard Layout. Placing jumper
caps over these connector pins will cause damage to your motherboard.
Always connect ribbon cables with the red stripe to Pin 1 on the
connectors. Pin 1 is usually on the side closest to the power connector on hard
drives and CD-ROM drives, but may be on the opposite side on floppy disk
1) Primary (Blue) / Secondary IDE Connectors (40-1 pin IDE1/IDE2)
These connectors support the provided UltraDMA/66 IDE hard disk ribbon cable.
Connect the cable's blue connector to the primary (recommended) or secondary
IDE connector, then connect the gray connector to the UltraDMA/66 slave device
(hard disk drive) and the black connector to the UltraDMA/66 master device. It
is recommended that non-UltraDMA/66 devices be connected to the secondary
IDE connector. If you install two hard disks, you must configure the second
drive to Slave mode by setting its jumper accordingly. Refer to the hard disk
documentation for the jumper settings.
CUV4X-CME IDE Connectors
ASUS CUV4X-CME User's Manual
NOTE: Orient the red markings
(usually zigzag) on the IDE
ribbon cable to PIN 1.