User`s manual

28 ASUS P5A-B User’s Manual

III. INSTALLATION

Connectors

III. INSTALLATION

7. 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 the 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).

P5A-B IDE Connectors

NOTE: Orient the red stripe on your

cable to Pin 1

Primary IDE Connector

Secondary IDE Connector

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.

8. 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.

P5A-B IDE Activity LED

IDELED