ALLATION INST .III

Connectors

III.INSTALLATION

9.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 on the same channel, you must set the second drive to Slave mode. 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 BIOS Fea- tures Setup of the BIOS SOFTWARE) (Pin 20 is removed to prevent insert- ing in the wrong orientation when using ribbon cables with pin 20 plugged).

NOTE: Orient the red markings on the

IDE ribbon cable to PIN 1

PIN 1

Secondary IDE Connector

Primary IDE Connector

P5A IDE Connectors

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.

10.IDE activity LED (IDELED, 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.

TIP: If the case-mounted LED does not light, try reversing the 2-pin plug.

IDELED

+

P5A IDE Activity LED

28

ASUS P5A User’s Manual