Adaptec AHA-1520B Install Manual
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Adaptec AHA-1520B Install Manual

Host adapter
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Introduction
This installation guide provides the instructions needed to install and
use your new SCSI host adapter. Once you have performed the simple
installation steps listed on pages 2 through 5, your host adapter and
SCSI devices are ready for operation.
We recommend that you keep this installation guide with your impor-
tant computer documents. One of the benefits of SCSI is that you can
connect as many as seven peripherals to your host adapter. If you are
not connecting the full complement of seven peripherals during your
initial installation, when the time comes to add another peripheral,
this installation guide will help with that installation.
Also, this installation guide includes information on the Adaptec
SCSISelect™ configuration utility. After installation, you can use this
utility to reconfigure your host adapter without having to reopen the
computer or handle the card.
Switch Block
Controls host adapter BIOS
LED Connector
and I/O port addresses in
Connects to the
non-Plug and Play systems.
computer's LED cable
to display activity on
the SCSI bus.
Pin 1
Host Adapter BIOS PROM
Provides booting capabilities
from a SCSI hard disk drive.
Also stores the onboard
SCSISelect configuration utility.
AHA-1520B Host Adapter
Internal SCSI Connector
Uses a 50-pin internal SCSI ribbon cable to
connect internal SCSI devices.
External SCSI Connector
Uses 50-pin high-density external
SCSI cables to connect external
SCSI devices.
Contents

Installation and Setup

Installation Steps . . . . . . . 2 - 5
Switches . . . . . . . . . . . . . . 7
Connector . . . . . . . . . . . . . 7
Configuring the Host
Adapter . . . . . . . . . . . . . . . 8
Utility . . . . . . . . . . . . . . . . 8
SCSISelect Settings . . . . . . . 9
Solutions . . . . . . . . . . . . . .11
Contacting NEC . . . . . . . . .13
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Summary of Contents for Adaptec AHA-1520B

  • Page 1: Table Of Contents

    Also, this installation guide includes information on the Adaptec SCSISelect™ configuration utility. After installation, you can use this utility to reconfigure your host adapter without having to reopen the computer or handle the card.
  • Page 2 Installation and Setup WARNING: Turn OFF power to the computer and disconnect the power cord. Step 1: Remove the cover from the computer case. (If necessary, refer to the instructions in your computer documentation.) Back of Your Computer Step 2: Locate an unused 16-bit ISA expansion slot (this slot is typically black);...
  • Page 3 Step 4: Prepare each internal SCSI device for installation: (If you are installing External SCSI devices only, skip to Step 10.) Make sure all SCSI devices (internal and external) are assigned a unique SCSI ID from 0 to 6. Refer to the device’s documentation for instructions on setting the SCSI ID.
  • Page 4 Step 8: Plug the remaining connectors on the cable into any remaining internal devices (these devices must not be terminated, see Step 4). Pin 1 Colored Stripe To Host Adapter 2nd Internal SCSI Device To 1st Internal SCSI Device Step 9: Connect an available DC power cable (from your computer’s power supply) to the power input connector on the SCSI device.
  • Page 5 EZ-SCSI software documentation for installation instructions. If you wish to purchase EZ-SCSI, you can call Adaptec to order directly. If you purchased your host adapter as part of a bun- dle created by a third party, you can use the drivers they provide.

  • Page 6: Helpful Hints

    (e.g., each host adapter can have a device with SCSI ID 0). If you have two or more SCSI host adapters, enable the BIOS only on the boot host adapter; disable the BIOS on the remaining host adapters.

  • Page 7: Setting Host Adapter Switches

    Setting Host Adapter Switches The switch block on your host adapter, is factory set to work in a Plug and Play system. Since resources in a Plug and Play system are assigned automatically, you should not have to change these settings. If your system is not Plug and Play, you may have to change the I/O port address and BIOS address settings.

  • Page 8: Scsiselect Utility

    Utilities. Adaptec AHA-1520B/1522B SCSISelect(TM) Utility v1.11 AHA-1520B/1522B at Port 0340h Would you like to configure the host adapter or run the SCSI disk utilities? Select the option and press <Enter>. Press <F5> to switch between color and monochrome modes. Options...

  • Page 9: Scsiselect Settings

    MS-DOS fdisk and format. Most SCSI disk devices are preformatted at the fac- tory and do not need to be formatted again. The Adaptec Format Disk utility is compatible with the vast majority of SCSI disk drives. Caution: A low-level format destroys all data on the drive.

  • Page 10: Scsi Device Settings

    SCSI Device Settings The SCSI device settings allow you to configure certain parameters for each device on the SCSI bus. To configure settings for a specific device, you must know the SCSI ID assigned to that device. If you are not sure of the SCSI ID, see Using the SCSI Disk Utilities on page 9.

  • Page 11: Need Assistance

    Common Problems and Solutions When the Adaptec BIOS header message appears, it hangs my system. Make sure the SCSI hard drives at SCSI ID 0 and 1 are properly terminated. Check for possible resource con- flicts between the host adapter and other cards installed in your computer;...
  • Page 12 I have both a Soundblaster card with a SCSI controller embedded on it, and an AHA-1520B installed in the same computer. Am I going to experience any resource conflicts? The AHA-1520B and the SCSI controller on the Sound- blaster card are typically both set, by default, to use I/O port address 340 and IRQ 11.

  • Page 13: Common Error Messages

    This message usually indicates that the host adapter is not working correctly—Check the items in Troubleshooting Checklist on page 11. If the problems persists, contact Adaptec customer support. “No ROM Basic, system halted” This message usually indicates that the first hard drive in the system has not been set as the active or bootable partition—...
  • Page 14 AHA-1520B Installation Guide Part Number: 511162-00, Rev. A Page 14 of 16 Print Spec Number: 495339-00 Current Date: 5/30/96 Last Modified: May 30, 1996 3:43 pm File Location: n:\mario\1520b_ig.nec\1520b_ig.frm ECN Date: 6/11/95...
  • Page 15 AHA-1520B Installation Guide Part Number: 511162-00, Rev. A Page 15 of 16 Print Spec Number: 495339-00 Current Date: 5/30/96 Last Modified: May 30, 1996 3:43 pm File Location: n:\mario\1520b_ig.nec\1520b_ig.frm ECN Date: 6/11/95...
  • Page 16 AHA-1520B Installation Guide Part Number: 511162-00, Rev. A Page 16 of 16 Print Spec Number: 495339-00 Current Date: 5/30/96 Last Modified: May 30, 1996 3:43 pm File Location: n:\mario\1520b_ig.nec\1520b_ig.frm ECN Date: 6/11/95...

This manual is also suitable for:

1520b

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