Asus Motherboard A7V8X - Manual (Page 44)

2-18 Chapter 2: Hardware information
3. IDE connectors (40-1 pin IDE1, IDE2)
This connector supports the provided UltraDMA/133/100/66 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/133/100/66 slave device (hard disk drive)
and the black connector to the UltraDMA/133/100/66 master device. It
is recommended that you connect non-UltraDMA/133/100/66 devices
to the secondary IDE connector. If you install two hard disks, you must
configure the second drive as a slave device by setting its jumper
accordingly. Refer to the hard disk documentation for the jumper
settings. BIOS supports specific device bootup. If you have more than
two UltraDMA/133/100/66 devices, purchase another UltraDMA/133/
100/66 cable. You may configure two hard disks to be both master
devices with two ribbon cables – one for the primary IDE connector
and another for the secondary IDE connector.
1. Pin 20 on each IDE connector is removed to match the covered
hole on the UltraDMA cable connector. This prevents incorrect
orientation when you connect the cables.
2. The hole near the blue connector on the UltraDMA/133/100/66
cable is intentional.
For UltraDMA/133/100/66 IDE devices, use an 80-conductor IDE
cable. The UltraDMA/66 cable included in the motherboard package
also supports UltraDMA/133/100.
A7V8X ®
A7V8X IDE Connectors
NOTE: Orient the red markings
(usually zigzag) on the IDE
ribbon cable to PIN 1.
SEC_IDE1
PIN 1
PRI_IDE1