3Com DK8X Computer Hardware User Manual


 
Chapter 2 Hardware Installation
FLOPPY DISK DRIVE CONNECTOR
This 34-pin connector supports the standard floppy disk drive ribbon cable. Connect the
single connector end to the Mainboard. Then, plug the other end of the ribbon into the
floppy drive. Make sure you align the Pin 1 on the connector with the Pin 1 alignments
on the Mainboard and the floppy drive.
PRIMARY IDE CONNECTORS
The two 40-pin IDE connectors (primary and secondary channels) support 80-conductor
IDE ribbon cables. Connect the single connector end to the Mainboard. Then, connect the
two connectors at the other end to your IDE device(s). If you connect two hard disks to
the same cable, you must set the second drive as a Slave through its jumpers settings.
Refer to the IDE device's documentation for the specific jumper settings. (Pin 20 is
removed to prevent the connector from being insertied in the wrong orientation when
using ribbon cables with pin 20 plugged in). The BIOS supports Ultra DMA
33/66/100/133.
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Pin 1
Hardware Installation 2-17