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28 ASUS TXP4 User’s Manual
III. INSTALLATION
(Connectors)
III. INSTALLATION
6. Primary / Secondary IDE connectors (Two 40-1 pin block)
These connectors support the provided IDE hard disk ribbon cable. After con-
necting the single end to the board, connect the two plugs at the other end to
your hard disk(s). If you install two hard disks, you must set the second drive to
Slave mode. Refer to the documentation of your hard disk for the jumper set-
tings. BIOS now supports SCSI device or IDE CD-ROM bootup (see HDD Se-
quence SCSI/IDE First & Boot Sequence in the BIOS Features Setup of the
BIOS SOFTWARE) (Pin 20 is removed to prevent inserting in the wrong
orientation when using ribbon cables with pin 20 plugged).
R
TXP4 IDE (Hard Disk Drive) Connectors
Primary IDE Connector
Secondary IDE Connector
Orient the red stripe on the
IDE ribbon cable to Pin 1
Pin 1
TIP: You may configure two hard disks to be both Masters using one ribbon
cable on the primary IDE connector and another ribbon cable on the secondary
IDE connector. You may install one operating system on an IDE drive and
another on a SCSI drive and select the boot disk through BIOS Features Setup.
7. IDE activity LED (IDE LED, 2 pins)
This connector supplies power to the cabinet’s IDE activity LED. Read and
write activity by devices connected to the Primary or Secondary IDE connectors
will cause the LED to light up.
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TIP: If the case-mounted LED does not light,
try reversing the 2-Pin plug.
TXP4 IDE (Hard Drive) LED Lead
IDE LED
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