Sperry 286 BIOS Versions Earlier Than 1.57 Need an Upgrade (73726)



The information in this article applies to:
    Microsoft MS-DOS operating system 5.0
    Microsoft MS-DOS operating system 5.0a
    Microsoft MS-DOS operating system 6.0
    Microsoft MS-DOS operating system 6.2
    Microsoft MS-DOS operating system 6.21
    Microsoft MS-DOS operating system 6.22

This article was previously published under Q73726

SUMMARY

The Sperry PC computers may have a problem reading a 1.2 MB floppy disk under MS-DOS versions 5.0 and later if the BIOS version is earlier than 1.57. The common error message is:

Error: Parameter not compatible

Format terminated
To check the BIOS version on a Sperry model PC, type the following, pressing ENTER after each line:

DEBUG
D F000:8080
Q

This will display the version number.

MORE INFORMATION

To order new BIOS (1.58), contact Sperry at (800) 448-1424, 8:00 to 5:00 Eastern time.

The product included here is manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

Modification Type: Major Last Reviewed: 5/12/2003
Keywords: KB73726