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AHA-1740A/1742A/1744
EISA-to-Fast SCSI
Host Adapter
User’s Manual
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AHA-1740A/1742A/1744 EISA-to-Fast SCSI Host Adapter User’s Manual
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Copyright © Copyright 1992 Adaptec, Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means; electronic, mechanical, photocopying, recording or otherwise, without the prior written consent of Adaptec, Inc., 691 South Milpitas Blvd., Milpitas, CA 95035. Trademarks AMI is a registered trademark of American Megatrends, Inc. ASPI is a trademark of Adaptec, Inc. IBM PC-AT and OS/2 are registered trademarks of In
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Technical Support There are several ways to get technical assistance for your Adaptec product(s). Each is described below. When requesting assistance, be sure that you have the following items available (or if you write or FAX, send them along): • the model of any Adaptec hardware product(s) you have. • the model and version number of any Adaptec software product(s) you are using. • the type and version number of operating system you are using. • the place at which you purchased your Adaptec pr
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Table of Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x Chapter One Overview General Product Information . . . . . . . . . . . . . . . . . . . . . . 1-1 Installation Software . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 BIOS Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 System Caching Description . . . . . .
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adaptec AHA-1740A/1742A/1744 Standard Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 Enable Parity Checking . . . . . . . . . . . . . . . . . . . . . . 3-13 Initiate Synch Negotiation . . . . . . . . . . . . . . . . . . . . 3-14 Enable Disconnection . . . . . . . . . . . . . . . . . . . . . . . . 3-14 Enhanced Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 Error if Device Not Found . . . . . . . . . . . . . . . . . . . . . 3-15 BIOS S
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Table of Contents EISA-to-Fast SCSI Host Adapter Chapter Seven Troubleshooting Determining Problems Using the LED . . . . . . . . . . . . . . . 7-1 Problems Detected During Installation . . . . . . . . . . . . . . 7-2 Problems Booting the System from a SCSI Drive . . . . . . 7-4 Problems Using a SCSI and a Standard Disk Drive . . . . 7-4 Problems Using Two SCSI Drives . . . . . . . . . . . . . . . . . . . 7-5 Appendix A Disk Drives Over 1 Gigabyte Extended Translation (Using DOS 5) . . . .
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adaptec AHA-1740A/1742A/1744 List of Figures Figure 2-1. SCSI Device Termination . . . . . . . . . . . . . . . . . . 2-3 Figure 3-1. System Configuration Overview . . . . . . . . . . . . . 3-2 Figure 3-2. System Configuration Detailed View . . . . . . . . . 3-3 Figure 3-3. Change Resources Screen . . . . . . . . . . . . . . . . . . 3-5 Figure 3-4. SCSI Configuration Options . . . . . . . . . . . . . . . 3-12 Figure 3-5. Global Configuration Options . . . . . . . . . . . . . . 3-13 Fi
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Preface This User Guide provides information relating to the operation of the Adaptec AHA-1740A/1742A/1744 EISA-to-Fast SCSI Host Adapter in an EISA (Extended Industry Standard Archi- tecture) system. Chapter One, Overview, provides general information and a list of files provided for configuration. Chapter Two, Hardware Installation, describes the installa- tion of the AHA-1740A/1742A/1744 host adapter in your EISA system. Chapter Three, Using the Configuration Utility, contains information on
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Conventions The following typographic conventions are used throughout this Installation Guide. bold Used for keystrokes (.. press the Enter key ..) and screen selec- tion fields (.. select Backup Device and ..). Helvetica Used for operator entry that must be typed exactly as shown ( .. device=c:\cdrom\cdrom.tsd ..) and for screen messages (.. En- ter Password ..). Helvetica Italics Used as a place holder for text you must determine and type in (.. enter nn for number ..). Also used for program
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Printed in Singapore STOCK NO.: 510215-00 Rev B 691 south milpitas blvd. • milpitas, ca 95035 •(408)945-8600 LL 8/93
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Chapter One Overview This User Guide provides software installation information for the Adaptec AHA-1740A, 1742A, and the 1744 EISA-to-fast-SCSI bus master host adapters. Cumulatively the cards are referred to as AHA-1740A/1742A/1744 in this guide. The Adaptec adl.exe download utility and the ASW-C174 and ASW-M174 software packages are described, as well as available software support. General Product Information The AHA-1740A/1742A/1744 provides a high performance connec- tion between the EISA (
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adaptec AHA-1740A/1742A/1744 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 devices. T
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EISA-to-Fast SCSI Host Adapter Overview The AHA-1744 microcode is stored in an EEPROM. This allows the microcode to be changed with the Adaptec adl.exe program. The adl.exe program can also be used to determine the checksum of the currently installed microcode and low-level format SCSI fixed disks. Both the standard and enhanced mode microcode can reside in the EEPROM at the same time. The AHA-1740A/1742A uses an EPROM for the microcode, which does not allow the microcode to be changed. Howev
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adaptec AHA-1740A/1742A/1744 Installation Software Software required to install the AHA-1740A/1742A/1744, in an EISA system, is provided in the ASW-C174 software package. The files consist of: Table 1-1. AHA 1740A/1742A/1744 Program Files File Name File Description !adp0000.cfg EISA configuration file for the AHA-1740A/1742A/1744 !adp0001.cfg EISA configuration file for the AHA-1740A !adp0002.cfg EISA configuration file for the AHA-1742A !adp0400.cfg EISA configuration file for the AHA-1744 a
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EISA-to-Fast SCSI Host Adapter Overview BIOS Operation Modes The AHA-1740A/1742A/1744 has two modes of operation: stand- ard mode and enhanced mode. The standard mode is software compatible with the AHA-1540 series host adapter drivers. The enhanced mode uses an advanced, high performance mailbox interface and features full EISA 32-bit addressing. The AHA-1740A/1742A/1744, in enhanced mode, can support up to 4 Gigabytes of host RAM memory. The two modes of the AHA-1740A/1742A/1744 are se
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adaptec AHA-1740A/1742A/1744 System Caching Description The AHA-1740A/1742A/1744 fully supports operating systems caching to maximize overall system performance. Having RAM on the host adapter can actually decrease overall system perform- ® ance while adding cost. Operating systems such as Novell Net- ® ™ Ware, OS/2 , UNIX, XENIX, DOS and Windows have built-in cache and caching the same data in the operating system and on the host adapter can bog down system performance. Overall system performa
