Asus P2B-LS P2B-LS User Manual - Page 29

III. INSTALLATION 9. Primary / Secondary IDE connectors (Two 40-1pin IDE) 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. PIN 1 Primary IDE Connector Secondary IDE Connector III. INSTALLATION Connectors R P2B-L/S/LS IDE Connectors 10. IDE/SCSI Device Activity LED (two 2-pins) This connector supplies power to the cabinet's hard disk or IDE/SCSI activity LED. Read and write activity by devices connected to the Primary or Secondary IDE connectors will cause the IDELED to blink. Read and write activity by devices connected to the SCSI connectors will cause the SCSILED to blink. If the COMBINE jumper is used, read and write activity by devices connected to both the IDE and SCSI connectors will cause the IDELED to blink. TIP: If the case-mounted LED does not light, try reversing the 2-pin plug. IDELED SCSILED P2B-L/S/LS IDE/SCSI Device Activity LED R ASUS P2B-L/P2B-S/P2B-LS User's Manual 29