Asus P/I-P55T2P4S User Manual page 27

III. INSTALLATION
7. Primary / Secondary IDE Connectors (Two 40-pin Block)
These connectors support the provided IDE hard disk ribbon cable.
After connecting 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 configure the
second drive to Slave mode by setting its jumper accordingly. Please refer to the
documentation of your hard disk for the jumper settings. BIOS now supports
SCSI device or IDE CD-ROM bootup (see "HDD Sequence 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).
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.
IDE (Hard Drive) Connectors
8. IDE Activity LED (HDLED)
This 2-Pin lead will light up a case LED whenever there is read/write activity by
devices connected to the IDE and/or SCSI connectors.
Hard Drive LED Lead
ASUS P/I-P55T2P4S User's Manual
Pin 1
Connect the Red stripe to Pin 1
Secondary IDE Connector
Primary IDE Connector
TIP: If the case-mounted LED does not light,
try reversing the 2-Pin plug.
HD LED
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