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Chapter 4: Motherboard information4-10
2. Primary IDE connector (40-1 pin PRI_IDE1)
This connector is for an Ultra ATA100/66/33 signal cable. The Ultra
ATA 100/66/33 signal cable has three connectors: a blue connector for the
primary IDE connector on the motherboard, a black connector for an Ultra ATA
100/66/33 IDE slave device (optical drive/hard disk drive), and a gray connector
for an Ultra ATA 100/66/33 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.
4.3 Internal connectors
1. Floppy disk drive connector (34-1 pin FLOPPY1)
This connector is for the provided floppy disk drive (FDD) signal cable. Insert
one end of the cable to this connector, then connect the other end to the
signal connector at the back of the floppy disk drive.
Pin 5 on the connector is removed to prevent incorrect cable connection when
using a FDD cable with a covered Pin 5.
• Pin 20 on the IDE connector is removed to match the covered hole on the Ultra
ATA cable connector. This prevents incorrect insertion when you connect the
IDE cable.
• Use the 80-conductor IDE cable for Ultra ATA 100/66/33 IDE devices.
LAN2
®
NOTE: Orient the red markings on
the floppy ribbon cable to PIN 1.
P5MT Series Floppy disk drive connector
FLOPPY1
PIN 1
LAN2
®
P5MT Series IDE connector
NOTE: Orient the red markings
(usually zigzag) on the IDE
ribbon cable to PIN 1.
PRI_IDE1
PIN 1