Adaptec 1742A, AHA-1740A, 1744 user manual Enhanced Mode Operation, Enhanced Bios Boot Message

Page 43

EISA-to-Fast SCSI Host Adapter	Host Adapter BIOS Operation

Enhanced Mode Operation

The enhanced mode operation enables the adapter BIOS to iden- tify all installed fixed disks with a valid SCSI ID.

All SCSI IDs with the BIOS support option enabled, using the EISA Configuration utility, are scanned. The devices are scanned, starting from SCSI ID 0 and increasing until two SCSI fixed disks are found or all supported SCSI IDs have been searched. Those devices found that are not valid fixed disks, such as SCSI tape drives, CD-ROM drives, etc., will not be installed. However, the SCSI Inquiry data, the manufacturer and model number for these devices, is shown.

The following message appears when you boot the computer sys- tem with the enhanced mode operation selected.

Adaptec AHA-1740 BIOS v1.34

Copyright 1991 Adaptec, Inc.

[Standard Mode]

Target 0	- QUANTUM		P40S 940-40-94XX - Drive C: (80h)
Target 2	-	CONNER	CP340 (40mb 3.5) - Drive D: (81h)
Target 4	-	CHINON	CD-ROM CDS-431

Figure 6-2. Enhanced BIOS Boot Message

Installed devices display the SCSI Inquiry data followed by the drive C (80h) or drive D (81h) designation. Drives 82h through 8Fh are supported with the adapter BIOS running DOS 5 or higher.

6-3

Image 43

Contents User’s Manual Page User’s Manual Copyright Iii Page Table of Contents Adaptec Glossary Index List of Tables List of FiguresPreface Bold ConventionsPage South milpitas blvd. ∙ milpitas, ca 95035 ∙408945-8600 General Product Information OverviewAdaptec EISA-to-Fast Scsi Host Adapter Overview AHA 1740A/1742A/1744 Program Files Installation SoftwareAHA 1740A/1742A/1744 Operation Modes Bios Operation ModesSystem Caching Description AHA-1740A/1742A/1744 Product Specifications Product SpecificationsAssociated Documentation ∙ Installation Guide∙ Technical Reference Manual Unpacking and Inspection Hardware InstallationPreparation Scsi Device Termination Scsi TerminatorsScsi ID Scsi ParityPhysical Installation in the System Adaptec Enhanced Mode Standard ModeMultiple Host Adapter Support Standard and Enhanced Modes Running the ADL Program Adaptec Download UtilityHost Adapter Listing ADL Main Menu Download Firmware Screen Download FirmwareDownload Warning Message Screen Firmware Information Enhanced Mode Firmware InformationLow-Level Format Device Selection Screen Low-Level FormatLow-Level Format Option Selection Screen Low-Level Format Options screen displaysExiting the ADL Program Exiting the ADL ProgramPage Standard Mode Operation Host Adapter Bios OperationAdaptec Enhanced Bios Boot Message Enhanced Mode OperationBoot Message With Error Detection Enabled Determining Problems Using the LED TroubleshootingAHA 1740A/1742A/1744 LED Flash Codes Problems Detected During InstallationEISA-to-Fast Scsi Host Adapter Troubleshooting Problems Using a Scsi and a Standard Disk Drive Problems Booting the System from a Scsi DriveProblems Using Two Scsi Drives Adaptec Disk Drives Over 1 Gigabyte Extended Translation Using DOSDOS 1 Gigabyte Limit Using Extended Translation When to Use Extended Translation With DOS Version 5 OnlyDrives With Mixed Partitions Questions and Answers About Extended Translation Using FdiskLoad ASW-1410 v3.0a Adaptec DOS/Windows Loading the I/O Operating Environment SoftwareOS/2 Novell NetWareUnix Glossary Asynchronous Event Notification Bus Device ResetCommand Control Block Command Descriptor BlockControl Microprocessor Common Command SetConfiguration Direct Memory AccessFirmware Enhanced ModeHost Initiator Host AdapterIBM PC-AT Compatible Industry Standard ArchitectureMulti-tasking Operation MailboxMailbox Out ManagerSingle-Threaded Operation Scatter/GatherScsi Device Single-EndedTagged Queuing Standard ModeSynchronous Data Transfer Synchronous Data Transfer NegotiationIndex AHA-1740A/1742A/1744 Index-2 Index-3 AHA-1740A/1742A/1744 Index-4