Seagate SCSI Adapters ST-01 and ST-02 and Windows

• Microsoft Windows operating system versions 3.0, 3.0a, 3.1, 3.11

SUMMARY

The Seagate ST-01 and ST-02 SCSI host adapters can be configured to work with Microsoft Windows; however, you need to resolve the following two issues to allow these cards to function correctly:

• Excluding ST-01 and ST-02 in the upper memory area (UMA)
• Using ST-02 with an RLL controller

MORE INFORMATION

Excluding ST-01 and ST-02 in UMA

The Seagate model ST-01 and ST-02 SCSI host adapters use a memory address space in the upper memory area (UMA) between 640 and 1024K. This address used is defined by the JP-1 jumper on the card.

After determining the card's address, exclude it in the SYSTEM.INI file with an EMMEXCLUDE=xxxx-yyyy in the [386Enh] section, or exclude it with your UMA provider, such as EMM386.EXE, if you are using one.

Configuration     No UMA Provider          EMM386.EXE in Use

No pins

connected         EMMEXCLUDE=C800-CBFF     X=C800-CBFF

connected         EMMEXCLUDE=CC00-CFFF     X=CC00-CFFF

C&D connected     EMMEXCLUDE=DC00-DFFF     X=DC00-DFFF

If you are using a Seagate ST-02 SCSI controller and a RLL controller in the same machine, then make sure the RLL is the primary controller or you can't use the ST-02 to control your floppy drives.

To make the RLL controller the primary controller, make sure that you change its ROM address in the UMA to be lower than the SCSI controller's address. For example, if the RLL controller is at D400, and the ST-02 is at D000, move the RLL controller to C800.

This may require changing the SCSI controller address also. Check the hardware manuals for this information.

The Seagate products included here are manufactured by a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.