DOCUMENT:Q78149 17-DEC-2000 [msdos] TITLE :AST Premium 286 May Require Premium BIOS 2.0 PRODUCT :Microsoft Disk Operating System PROD/VER:MS-DOS:5.x,6.0,6.2,6.21,6.22 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft MS-DOS operating system versions 5.0, 5.0a, 6.0, 6.2, 6.21, 6.22 ------------------------------------------------------------------------------- SUMMARY ======= AST Research has confirmed that AST Research Premium 286 computers with Premium BIOS versions earlier than 2.0 may experience system hangs or inconsistent keyboard behavior while running Microsoft MS-DOS 5.0 and later. AST Premium BIOS version 2.0 is also required to operate Microsoft Windows 3.0 in enhanced mode if the FAST BOARD 80386 upgrade is used. AST Premium 286 machines using the FAST BOARD 80386 upgrade require AST BIOS version 2.0 or later to operate in Windows 3.0 enhanced mode. Machines using the earlier Phoenix BIOS are not able to run Windows in enhanced mode. AST Research recommends replacing the Premium BIOS with an updated version. MORE INFORMATION ================ AST Research Premium 286 computers with Premium BIOS versions earlier than 2.0 may experience system hangs, inconsistent keyboard behavior, or the following error message while running MS-DOS: No Keyboard Present A BIOS upgrade is available from AST for a nominal charge. To obtain the upgrade, contact AST and ask for Premium BIOS version 2.0 part number 500-529-001N. 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. Additional query words: err msg 6.22 5.00 3rdparty 6.00 6.20 ====================================================================== Keywords : Technology : kbMSDOSSearch kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600 kbMSDOS500 kbMSDOS500a Version : MS-DOS:5.x,6.0,6.2,6.21,6.22 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2000.