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Chapter 3: Motherboard Info
3.
IDE connectors (40-1 pin PRI_IDE, SEC_IDE)
The PRI_IDE connector is for the UltraATA133 IDE hard disk ribbon
cable. Connect the cable’s blue connector to the IDE connector, then
connect the gray connector to a slave device (optical drive) and the
black connector to the UltraATA133 master device (hard disk drive).
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
UltraATA cable connector. This prevents incorrect orientation when you
connect the cables.
For UltraATA133 IDE devices, use an 80-conductor IDE cable.
P4SQ
P4SQ IDE Connectors
PIN 1
PRI_IDE
NOTE: Orient the red markings
(usually zigzag) on the IDE
ribbon cable to PIN 1.
PIN 1
SEC_IDE
The SEC_IDE connector connects the optional DiGiMatrix
Subsystem. The DiGiMatrix Subsystem is designed to provide
additional storage, and an extra optical drive. Refer to page A-2.
The DiGiMatrix Subsystem is purchased separately.
DiGiMatrix Subsystem
