5. Hardware Installation
M81E / M81DC2 / M812-FX Series User’s Manual
23
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IDE2-Connect one end of the 40-Pin ribbon cable that comes with the drive to the
slim type CD-ROM header, and the other end of the cable to the IDE2 box
header on the motherboard. (Note : Each header has the Pin-1 side clearly
marked. The Pin-1 side of the each ribbon cable is always marked with a red
stripe on the cable.)
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The primary channel has priority to the secondary channel. Within each
channel, the two different devices are distinguished by master and slave
relationship. The master device has priority over the slave device. (Refer to
illustration on the below)
Note : In order to achieve higher data transfer rate, you must be use an 80-Pin
ribbon cable is designed with a 40-Pin connector for IDE Ultra DMA66 devices.
Primary IDE1
Secondary IDE2
Master
Slave
Master
Slave
Status 1
Primary Channel has
priority over the
Secondary Channel
HDD
C:
HDD
D:
Master has priority
over the Slave devices
Status 2
HDD
C:
HDD
D:
HDD
HDD
E:
F:
Hard Disk drives have
priority over the CD-
ROM devices
Status 3
HDD
C:
E:
CD
F:
CD
HDD
D:
IDE1/2
Pin -1
Rear of IDE Device
