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Celestron AP8000 • 4-11.SCSI ID Setting, Using the SCSI Backplane Boards Separately, ID0, ID6, ID8, OFF, ID1, ID5, ID9, SET1, ID12, ID13, Slot0, Slot1, Slot2, Slot3

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Setup Hardware .IV

Setting ID SCSI

IV. Hardware Setup

Notch Out (top)

Four SCSI Backplane Board

Docking Connectors

Notch Out (bottom)

SCSI Backplane Board Front Side

• 4-11. SCSI ID Setting

All SCSI devices, including this motherboard with onboard SCSI, must have a SCSI identification number that is not in use by any other SCSI device. There are sixteen possible ID numbers, 0 through 15. SCSI ID settings are made through DIP switches located on the SCSI backplane board.

SET1

SET2

Default Setting

SET3 (Reserved)

SET4 (Reserved)

SET1

on

ON

ON

SET2

off

SET3

off

1

2

3

4

1

2

3

4

SET4

off

Using the SCSI Backplane Boards Separately

Each SCSI backplane board supports four hard drives. If you are only installing four or less hard drives in the hot-swap bays, only one SCSI backplane board is needed. You may also use two SCSI channels and treat each SCSI backplane board separately. The SCSI ID for the hard drives used in each slot is determined by the SCSI ID DIP switch. The switch controls two sets of SCSI IDs so individual ID settings cannot be made. The following table shows the results when setting the SCSI ID switch to either the ON or OFF position.

SCSI ID Settings for Separate SCSI Backplane Boards

(SET2 is always OFF)

SET1	Slot0	Slot1	Slot2	Slot3

ON	ID0	ID6	ID8	ID12

OFF	ID1	ID5	ID9	ID13

30	AP8000 Hardware Reference Guide

Contents

Page AP8000 Hardware Reference Guide ASUSTeK COMPUTER INC. (Asia-Pacific) Marketing Technical Support ASUS COMPUTER INTERNATIONAL (America) ASUS COMPUTER GmbH (Europe) I. Introduction II. Components III. Basic Operation IV. Hardware Setup Page Federal Communications Commission Statement Canadian Department of Communications Statement •1-1.How this Manual is Organized Symbols •1-2.Component Checklist Standard components Optional components •1-3.Features •1-4.Safeguards Operation Safety Tools Required •1-5.Electrical Safety Static-SensitiveDevices (This page was intentionally left blank.) •2-1.Server Front Side •2-2.Server Back Side •2-3.Server Left Side •3-1.Starting the Server • 3-2.LED Indicators • 3-3.BIOS Setup • 4-1.Opening the Chassis Chassis Panels Opening the Left Panel Fan • 4-2.Motherboard Spacers Install the Baseboard Screws Device Cables Cable Connections • 4-3.Central Processing Unit (CPU) Install Retention Mechanisms Mechanism Brace Bars Install Cartridge Lifters Mechanism Cap Frame • 4-4.Chassis Intrusion Switch Chassis Intrusion Connector • 4-5.Expansion Cards • 4-8.Fixed Storage Devices Fixed Storage Device Tray Fixed Device Bay Cover Clips • 4-7.Floppy Disk Drive and CD-ROM Floppy Disk Drive CD-ROMDrive • 4-8. Hot-SwapTrays Removing Hot Swap Trays Hot-SwapTray Usage Hot-SwapTray Front Connections Hot-SwapTray Interface • 4-9. Hot-SwapTray Connector Board Hot-SwapTray Rear Connections • 4-10.SCSI Backplane • 4-11.SCSI ID Setting Using the SCSI Backplane Boards Separately Using Cascaded SCSI Backplane Boards • 4-12.SCSI Backplane Board Placement Installing & Removing SCSI Backplane Boards SCSI Hard Disk Connections • 4-13.Circulation System Fan Module • 4-14.Power Supply Redundant Power Supply Mounting Removing Removing the Entire Power Supply Unit Power Module Rating Power Module Failure Power Supply Information Power Supply Requirement Page i.SCSI Cable Limits ii. Glossary PCI Bus (Peripheral Component Interconnect Local Bus) Peripherals POST (Power On Self Test) PS/2 Port RAID (Redundant Array of Inexpensive Disks)