Asus PCH-DL - Manual (Page 42)

2-24 Chapter 2: Hardware information
3. IDE connectors (40-1 pin PRI_IDE[blue], SEC_IDE [black)
This connector supports the provided UltraDMA/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/100/66 slave device (hard disk drive) and
the black connector to the UltraDMA/100/66 master device.
• Refer to the hard disk drive label or documentation when setting
the device as master or slave.
• 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.
4. SMBus connector (6-1 pin SMB1)
This connector allows you to connect SMBus (System Management
Bus) devices. Devices communicate with an SMBus host and/or other
SMBus devices using the SMBus interface.
PCH-DL
PCH-DL SMBus Connector
SMB1
1
SMBCLK
Ground
SMBDA
T
A
+3V
FLOA
TING
PCH-DL
PCH-DL IDE Connectors
NOTE: Orient the red markings
(usually zigzag) on the IDE
ribbon cable to PIN 1.
SEC_IDE1
PRI_IDE1
PIN 1
PIN 1