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Adaptec 1744, AHA-1740A, 1742A Host Adapter BIOS Operation, Chapter Six, Standard Mode Operation

Models: AHA-1740A 1742A 1744

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Chapter Six

Host Adapter BIOS Operation

The AHA-1740A/1742A/1744 BIOS operates in two modes: stand- ard and enhanced. The mode of operation is selected with the use of the EISA Configuration utility supplied with you EISA com- puter system.

Standard Mode Operation

When the adapter BIOS is operating in the standard mode, only SCSI IDs 0 and 1 are supported. The fixed disk that is configured as SCSI ID 0 is the boot disk drive. The BIOS only looks for a disk at SCSI ID 1 if a disk drive was found at SCSI ID 0 and no non-SCSI disk drives are installed.

The following message appears on the display when you boot the computer system and the standard operation mode is selected.

Adaptec AHA-1740 BIOS v1.34

[Standard Mode]

Target 0 - Drive C: (80h)

Target 1 - Device not found.

Figure 6-1. Standard BIOS Boot Message

6-1

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Adaptec 1744, AHA-1740A Host Adapter BIOS Operation, Chapter Six, Standard Mode Operation, 1. Standard BIOS Boot Message

Contents

User’s Manual AHA-1740A/1742A/1744 EISA-to-Fast SCSI Host AdapterPage User’s Manual AHA-1740A/1742A/1744 EISA-to-Fast SCSI Host AdapterTrademarks CopyrightChanges LiteratureTechnical Support Page Chapter Two Hardware Installation Table of ContentsChapter Three Using the Configuration Utility Chapter One Overviewadaptec Chapter Six Host Adapter BIOS OperationChapter Four Multiple Host Adapter Support Chapter Five Adaptec Download UtilityTable of Contents EISA-to-Fast SCSI Host Adapter Chapter Seven TroubleshootingAppendix A Disk Drives Over 1 Gigabyte Appendix B Loading the I/O Operating Environment Softwareadaptec List of FiguresList of Tables Preface Helvetica Italics Conventionsbold Page 691 south milpitas blvd. ∙ milpitas, ca 95035 ∙408945-8600 Printed in SingaporeSTOCK NO Rev BGeneral Product Information OverviewChapter One adaptec The AHA-1740A/1742A/1744 supports asynchronous, synchro- nous, and Fast SCSI data transfers on the SCSI bus. Asynchro- nous data transfers support up to 2 MBytes/sec, synchronous transfers support up to 5 MBytes/sec, and Fast synchronous trans- fers support up to 10 MBytes/sec. Devices using different trans- fer rates can all be used on the same SCSI cable. The AHA-1740A/1742A/1744 is both SCSI-1 and SCSI-2 compatible, and supports both SCSI-1 and SCSI-2 devicesOverview EISA-to-Fast SCSI Host Adapteradaptec Installation SoftwareTable 1-1. AHA 1740A/1742A/1744 Program Files Table 1-2. AHA 1740A/1742A/1744 Operation Modes BIOS Operation Modesadaptec System Caching DescriptionTable 1-3. AHA-1740A/1742A/1744 Product Specifications Product SpecificationsPhysical Dimensions Power RequirementsAssociated Documentation ∙ Installation Guide∙ Technical Reference Manual adaptecUnpacking and Inspection Hardware InstallationChapter Two adaptec PreparationFigure 2-1. SCSI Device Termination SCSI Terminatorsadaptec SCSI ParitySCSI ID Physical Installation in the System adaptec 7. Carefully reinstall the cover of the computerChapter Four Multiple Host Adapter SupportStandard Mode Enhanced Modeadaptec Standard and Enhanced ModesChapter Five Adaptec Download UtilityRunning the ADL Program ∙ ∙ ∙ ∙adaptec Figure 5-1. Host Adapter ListingFigure 5-2. ADL Main Menu ∙ ∙ ∙adaptec Download FirmwareFigure 5-3. Download Firmware Screen Figure 5-4. Download Warning Message Screen adaptec Firmware InformationFigure 5-5. Enhanced Mode Firmware Information Figure 5-6. Low-Level Format Device Selection Screen Low-Level FormatEISA-to-Fast SCSI Host Adapter Adaptec Download Utilityadaptec The Low-Level Format Options screen displaysFigure 5-7. Low-Level Format Option Selection Screen Figure 5-8. Exiting the ADL Program Exiting the ADL ProgramEISA-to-Fast SCSI Host Adapter Adaptec Download UtilityPage Figure 6-1. Standard BIOS Boot Message Host Adapter BIOS OperationChapter Six Standard Mode Operationadaptec The BIOS version and operation mode of the AHA- 1740A/1742A/1744 appear at the top of the message, followed by a list of the identified SCSI devicesEnhanced Mode Operation Figure 6-2. Enhanced BIOS Boot MessageP40S 940-40-94XX - Drive C 80h Figure 6-3. Boot Message With Error Detection Enabledadaptec Chapter Seven TroubleshootingDetermining Problems Using the LED adaptec Problems Detected During InstallationTable 7-1. AHA 1740A/1742A/1744 LED Flash Codes If the following message displays adaptec Problems Booting the System from a SCSI DriveProblems Using a SCSI and a Standard Disk Drive EISA-to-Fast SCSI Host Adapter Problems Using Two SCSI DrivesTroubleshooting AHA-1740A/1742A/1744 adaptecDisk Drives Over 1 Gigabyte Extended Translation Using DOSAppendix A The DOS 1 Gigabyte LimitUsing Extended Translation When to Use Extended Translation With DOS Version 5 OnlyDrives With Mixed Partitions adaptecLoad ASW-1410 v3.0a Using FdiskQuestions and Answers About Extended Translation adaptec DOS/Windows Loading the I/O Operating Environment SoftwareAppendix B OS/2 Novell NetWareUnix adaptecGlossary Adapter CommandAHA-1540 AHA-1540BCommand Control Block Bus Device ResetCommand Descriptor Block Asynchronous Event NotificationConfiguration Common Command SetDirect Memory Access Control MicroprocessorEISA EEPROMEnhanced Mode EPROMIBM PC-AT Compatible Host AdapterIndustry Standard Architecture InitiatorMailbox Out Mailbox InManager Multi-tasking OperationSCSI Scatter/GatherSCSI ASC SCSI DeviceSynchronous Data Transfer Standard ModeSynchronous Data Transfer Negotiation Tagged QueuingIndex AHA-1740A/1742A/1744 Index-2adaptec EISA-to-Fast SCSI Host Adapter IndexIndex-3 AHA-1740A/1742A/1744 adaptec RIndex-4