readme.txt Driver File Contents (

               QLogic PCI SCSI Adapter - QLA12160
                  Drivers for DOS 6.0 and later

 Release Notes:
 This release has been tested with DOS 6.0 and all available
 versions and service packs as of this date.

    Note: Before installation, make a backup copy of the QLogic
          Software Diskette.

 This document is divided into 3 Sections

        Section 1   DOS files on this disk
        Section 2   DOS Installation
        Section 3   Troubleshooting

 Section 1  DOS files on this disk

 The following files on this disk support DOS 6.0 and above:

        QL26ASPI.SYS  -  DOS SCSI Driver including ASPI support.

        QL00CDRM.SYS  -  DOS Driver that allows support for CD-ROM devices.

        INSTALL.BAT   -  This is the batch file you execute to install the
                         DOS Drivers.

        README.TXT    -  This file.

 Note:  The remaining files in the root directory of this disk are
        support files for the QLogic utilities.

 Section 2  DOS Installation

 2.0 Installing DOS Drivers Using the Setup Utility

     The DOS software drivers can be installed manually or by
     using the Setup Utility.

     The Install utility, is a menu-based utility for installing and
     configuring your SCSI, ASPI, and CD-ROM drivers. It automatically
     updates your CONFIG.SYS and AUTOEXEC.BAT files and creates a backup
     copy of the original files with .OLD extension.  Install runs under
     version 6.0 or later of MS-DOS.

     If you use the Setup program, you do not need to perform the
     manual installation procedures in section 2.2

     To use Setup, follow these steps.

     1.  Boot to DOS (not WinNT or Win9x).

     2.  Insert the QLogic diskette in an appropriate drive.

     3.  At the DOS prompt, type (drive letter):INSTALL followed by
         the <ENTER> key.


     4.  Follow the screen prompts to access the README.TXT file or
         Press <ENTER> to continue.

     5.  The system prompts "Will you be connecting a CD-ROM to your
         system".  Click on YES if you are connecting a SCSI CD-ROM
         to the QLogic SCSI adapter.

     6.  Follow the directions displayed on the screen to complete the
         installation process.

     7.  Press the <ENTER> key to exit the program.  Remove the QLogic
         software diskette from the drive AFTER you exit the program.

     The following example shows what is added to your CONFIG.SYS file
     in a standard installation:

               DEVICEHIGH=C:\QLC\QL00CDRM.SYS /D:QLC0000

    NOTE:  If you have disabled the BIOS or you do not have a hard drive
           attached to the QLogic adapter, then you MUST load the QLogic
           DOS driver (QL26ASPI.SYS) in the CONFIG.SYS file
           before the memory manager.



     This completes the automatic installation of the DOS and CD-ROM
     drivers. For additional information, configuration options or
     manual installation of the DOS drivers, read the following

 2.1 DOS Driver and Switch Options

     The QLogic SCSI adapter has an onboard BIOS PROM that provides
     support for booting the system from a SCSI disk. This BIOS requires
     a SCSI disk to be attached or it will disable itself. If you use
     devices other than a hard disk, you need to load the RAM based BIOS
     that is provided (QL26ASPI.SYS).  Use of the DOS driver offers
     enhanced performance and additional functionality.

     Using the DOS driver is mandatory when you install the CD-ROM driver.
     The DOS driver and the CD-ROM driver are also provided on the QLogic

     The following option switches may be appended to the DOS
     driver (QL26ASPI.SYS) found in the CONFIG.SYS file: (Using these
     switches will override any jumpers on the adapter)

  /D or /DISPLAY
      Will display all SCSI devices attached to the adapter when the RAM
      driver is loaded.

      This will disable the ASPI portion of the DOS driver. It is not
      recommended to disable this unless you are sure ASPI support is
      not required.

     This will disable loading RISC code.

     This will disable SCSI seek commands.

  Example of command line parameter in the config.sys file:


 2.2 Manually installing the DOS Driver

    Note:  Manual installation is not necessary if you have already
           run the installer.

   Perform the following steps to install the DOS driver.

     1.  Place the QLogic diskette in the A: drive.

     2.  Create a directory on the boot drive of the computer to store
         the driver.

                        MD C:\QLC

     3.  Copy the DOS driver file from the diskette to the
         directory created in step 2.

                        COPY A:\DOS\QL26ASPI.SYS C:\QLC\*.*

     4.  Add the DOS driver to your CONFIG.SYS file.


    NOTE:  If you do not have a hard drive attached to the QLogic SCSI
           adapter or you have disabled the adapter's BIOS, make sure the
           line that loads the DOS driver is before the line that
           loads the memory manager (e.g. HIMEM.SYS).

     5.  If you want to use any of the option switches, append them to
         the DEVICE= line in your CONFIG.SYS file.

                        DEVICE=C:\QLC\QL26ASPI.SYS /DISPLAY

     6.  Save your edited CONFIG.SYS file.

     7.  Reboot the system.

 2.3 DOS CD-ROM Driver and Command Line Parameter

     The DOS CD-ROM driver provides the interface between the
     Microsoft MSCDEX.EXE program and the CD-ROM device attached to
     the QLogic SCSI adapter. The QLogic DOS driver (QL26ASPI.SYS),
     CD-ROM driver (QL00CDRM.SYS), and Microsoft's MSCDEX.EXE program
     are required for accessing the CD-ROM device as a data disc.

     The DOS CD-ROM driver supports the following mandatory parameter:



                        DEVICE=C:\QLC\QL00CDRM.SYS /D:QLC0000

     This specifies the name of your CD-ROM driver. The /D in the
     parameter does NOT refer to the drive letter of the CD-ROM.

     An identical parameter is also used when loading the MSCDEX.EXE
     program. The signature name is used by the MSCDEX.EXE program to
     determine with which drive to communicate.

     Make sure the driver name you supply to the MSCDEX.EXE program is
     identical to the one you used with the DOS CD-ROM driver.

    NOTE:  The MSCDEX.EXE program is provided by Microsoft with MS-DOS
           version 6.0 and above. If you are running an older version
           of MS-DOS, contact Microsoft to obtain MSCDEX.EXE.

 2.3.1 Installing the QLogic DOS CD-ROM Driver

     Before you can install the QLogic DOS CD-ROM driver, you must
     first install the DOS driver (QL26ASPI.SYS).

     Perform the following steps to install the DOS CD-ROM driver.

     1.  Place the QLogic diskette in the A: drive.

     2.  Copy the DOS CD-ROM driver file from the diskette to the
         computer's boot drive.

                        COPY A:\DOS\QL00CDRM.SYS C:\QLC\*.*

     3.  Add the DEVICE= line to your CONFIG.SYS file.

                        DEVICE=C:\QLC\QL00CDRM.SYS /D:QLC0000

         Make sure the line that loads the CD-ROM driver is after the
         line that loads the DOS driver.

                        DEVICE=C:\QLC\QL00CDRM.SYS /D:QLC0000

     4.  Save your edited CONFIG.SYS file.

     5.  Install the MSCDEX.EXE program in your AUTOEXEC.BAT file.

                        C:\DOS\MSCDEX.EXE /D:QLC0000

     6.  Save your edited AUTOEXEC.BAT file.

     7.  Reboot the system.

 Section 3 Troubleshooting

 3.1 Problems After Installation

     There are four basic types of problems that can occur after
     installation that may cause your QLogic SCSI adapter to function
     incorrectly: hardware problems, system problems, driver problems,
     and SCSI problems. The following sections help you determine why
     your QLogic SCSI adapter is not functioning.

 3.2 Hardware Problems

     Are there any loose boards in the PC?

     Are there any loose connections to the internal or external SCSI

     Is the SCSI adapter seated correctly in the PC? The gold-
     fingered edge should not be visible. This is important since
     some enclosures may not allow the adapter to be fully seated.

     Are all external peripherals properly connected and the system
     powered up?

 3.3 System Problems

     Check the motherboard and make any configuration changes
     necessary to accommodate the SCSI adapter. The SCSI adapter is
     configured by the system's BIOS. If you have the option of
     PCI bus level triggering or edge triggering, choose level.

     See the documentation for the motherboard to determine if it
     requires configuration. Disable the motherboard IDE interface(s)
     in the system Bios if you wish to use the SCSI drive as the boot
     device. If you do not have any documentation, contact the dealer
     from whom you purchased your computer.

     If your system message is "Missing Operating System" or "No ROM
     BASIC, System Halted", the boot drive is not set as the active
     partition in FDISK, or the disk drive attached to the SCSI adapter
     is not partitioned in a format compatible with the adapter. Use the
     DOS FDISK and format utility as required (typical DOS
     installation techniques).

     Not all adapter manufacturers use the same geometry when
     formatting disk drives. QLogic uses the Microsoft standard of 64
     heads, 32 sectors per track for drives less than one gigabyte and
     255 heads, 63 sectors per track for drives greater than one
     gigabyte. This may attribute to problems if you move the drive
     from one manufacture's SCSI controller to another. If the drive
     is not formatted with this geometry, you need to partition and
     format the drive using the DOS FDISK and FORMAT utilities.

 3.4 Driver Problems

     If you are having problems with a particular device or software
     application, you may need updated QLogic drivers. We are
     continually updating drivers to maintain compatibility with other
     manufacturer's hardware and software. You can access the latest
     information and drivers from the QLogic WEB page at

 3.5 SCSI Problems

     Are all the SCSI devices plugged in and turned on before you
     power up the PC? Power up all external SCSI devices, then power
     up the PC.

     Does each device have a unique SCSI ID? Each device must have its
     own unique ID between 0 and 15. The QLogic SCSI adapter is factory
     set for SCSI ID 7.

     Is termination on the QLogic SCSI adapter set correctly?

     Is termination for all devices on the SCSI bus set correctly?

     SCSI bus termination is one of the most important aspects and
     considerations for proper device operation. QLogic must emphasize
     the need for proper SCSI bus termination. Please confirm that
     termination is enabled at each end of the SCSI bus only, not in the
     middle.  Do not exceed cable length!

    NOTE:  The total length of all cables cannot exceed 6 meters
           (19.6 feet) for non-Ultra devices. On systems with Ultra
	       drives, the total length is limited to 1.8 meters
	       (6 feet) of quality cable. Ensure that pin 1 of the cable
	       is properly aligned.

     Are all the cables firmly attached and properly oriented to
     their correct ports?

     Have you installed the proper device driver for the QLogic SCSI
     adapter? See the installation sections in this readme file that
     apply to the drivers you want.
Download Driver Pack

How To Update Drivers Manually

After your driver has been downloaded, follow these simple steps to install it.

  • Expand the archive file (if the download file is in zip or rar format).

  • If the expanded file has an .exe extension, double click it and follow the installation instructions.

  • Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.

  • Find the device and model you want to update in the device list.

  • Double-click on it to open the Properties dialog box.

  • From the Properties dialog box, select the Driver tab.

  • Click the Update Driver button, then follow the instructions.

Very important: You must reboot your system to ensure that any driver updates have taken effect.

For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.

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