ATTO Technology Inc. ExpressPCI Driver Installation ------------------- If you are controlling ONLY hard disks and you are satisfied with the drive letter assignments made by the system BIOS, there is no need to load the EXPRESS2.SYS driver for DOS. If you have CD-ROM drives attached to the ExpressPCI card, you will need to load the EXPRESS2.SYS driver in your CONFIG.SYS file. The following line loads the EXPRESS2.SYS driver: DEVICEHIGH=[<directory>\]EXPRESS2.SYS <switches> Generally, this line should appear after the lines that load HIMEM.SYS and EMM386.EXE. The following switches are supported: /!a Do not load the ASPI driver. If you only have disks attached to your adapters, then the ASPI driver will be of little use. Not loading the ASPI driver will save about 2250 bytes of memory. /q This option causes a confirmation query to be presented to the user before loading the driver. The operator must respond with a 'y' or an 'n'. A 'y' causes the driver to be loaded; an 'n' causes it to be discarded. /!v This option causes messages listing adapters found, drives found, and partitions found to be suppressed. If you are not satisfied with the drive letter assignments made by the system BIOS and the disk drive you want to be your primary (C:) drive is not controlled by the ExpressPCI card, you can erase the Expansion ROM driver on the ExpressPCI card (see instructions in FLASH.TXT in the \DOS\UTILITY directory) and load the EXPRESS2.SYS driver in your CONFIG.SYS file. CD-ROM Support: --------------- If you have a CD-ROM attached to your ExpressPCI adapter you will need to load the SYMCD.SYS driver in your CONFIG.SYS file AFTER the line that loads the EXPRESS2.SYS driver. You will also need to load MSCDEX.EXE in your AUTOEXEC.BAT file. MSCDEX.EXE is provided as part of DOS 6.22 (in the C:\DOS directory) and as part of Windows 95 (in the C:\WINDOWS\COMMAND directory). For example, assuming you have installed the entire contents of the installation disk in directory C:\EXPRESS2, in CONFIG.SYS include the following lines (after the lines for HIMEM.SYS and EMM386.EXE, if any): DEVICEHIGH=C:\EXPRESS2\DOS\EXPRESS2.SYS DEVICEHIGH=C:\EXPRESS2\DOS\SYMCD.SYS /D:MSCD001 and in AUTOEXEC.BAT: LH MSCDEX.EXE /D:MSCD001 If you are preparing a bootable floppy for which you want access to the CD-ROM on your system, copy the files EXPRESS2.SYS, SYMCD.SYS and MSCDEX.EXE to the floppy and enter the following lines into CONFIG.SYS: DEVICE=EXPRESS2.SYS DEVICE=SYMCD.SYS /D:MSCD001 and add the following line in AUTOEXEC.BAT: MSCDEX.EXE /D:MSCD001 SYMCD.SYS Command Line Options: ------------------------------- The SYMCD.SYS device driver has several optional functions available which are enabled via switches on the command line. No spaces are allowed in specifying these command line options. Spaces are required between different command line options. /ASK This option prompts the user at system boot time whether to load the SYMCD.SYS driver or not. For example, the line in CONFIG.SYS that loads SYMCD.SYS would look like this: DEVICE=<path>SYMCD.SYS /D:MSCD001 /ASK /UPTOLUN= This option is used to support multiple LUNs (Logical Unit Numbers) per Target ID on the SCSI bus. It is needed to support CD-ROM changers that hold several CDs at one time, such as the Pioneer DRM604x. For example, the line in CONFIG.SYS that loads SYMCD.SYS would look like this: DEVICE=<path>SYMCD.SYS /D:MSCD001 /UPTOLUN=x where 'x' is in the range of 0 to 7. It uses LUN 0 through LUN x to assign a separate drive letter for each of the x+1 CDs in the CD magazine. The SYMCD.SYS driver defaults to supporting LUN 0 only. /NOBCD This Option is used to support the Trantor Music Box CD audio application. Using this option prevents the track numbers from being converted to BCD (Binary Coded Decimal). If this option is used with CD audio applications such as Adaptec's cdplayer, Corel's cd-audio, or Future Domain's cdaudio, track numbers >16 are not reported correctly because these applications require binary track numbers. For example, the line in CONFIG.SYS that loads SYMCD.SYS would look like this: DEVICE=<path>SYMCD.SYS /D:MSCD001 /NOBCDDownload Driver Pack
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.