Asus P5MT-MX/C - Manual (Page 46)

2-26 Chapter 2: Hardware information
3. IDE connector (40-1 pin PRI_IDE1)
This connector is for an Ultra DMA 100/66 signal cable. The Ultra
DMA 100/66 signal cable has one connector: a blue connector for the
primary IDE connector on the motherboard, a black connector for an
Ultra DMA 100/66 IDE slave device (optical drive/hard disk drive), and
a gray connector for an Ultra DMA 100/66 IDE master device (hard
disk drive). If you install two hard disk drives, 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.
• 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 100/66 IDE devices.
P5MT-MX/C IDE Connector
NOTE: Orient the red markings
(usually zigzag) on the IDE
ribbon cable to PIN 1.
PRI_IDE1
PI
N
1
®
P
5
M
T
-M
X
/C