To save your current bios:

DFLASH /DF OLD.ROM


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Viper II Z200 BIOS update version 3.1C.09
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Release Notes
-----------------
This is the BIOS version 3.1C.09 for the Viper II Z200 graphics card.

BIOS Flash Installation Notes
------------------
The following steps are recommended to properly update the Viper II 
Z200 with this updated ROM.

1.  Create a DOS system boot disk.
2.  Extract the contents of this BIOS set to the DOS system boot disk.
3.  Boot the system from this disk.
4.  The BIOS update will automatically execute.
5.  After the flash process has completed, remove the disk and reboot
    the system.
6.  System BIOS update has been completed.

Added Features
------------------
1.  Resolve issues with TV Output control
2.  Resolve issues with VIA 4X AGP motherboards

Known Limitations
------------------
None

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Diamond Multimedia Systems, Inc.     (c) 1993-2000, All Rights Reserved
=======================================================================

Info from the web-site:

BIOS Update
Version: 3.1C.09
Date: 3/10/00
File Size: 64Kb

This BIOS update is compatible with the Viper II Z200.

Important: Please be sure to download the version that corresponds to your specific card.

To determine the correct version for your board, you will need to know the sub-system ID of your Viper II. This is the 4-digit string following your bios version, and is briefly visible when the system first powers on (for example, 1.06C5932 - the sub-system ID would be 5932). Alternatively, you can use the DOS utility 'debug' to identify your Viper II - from within Windows, click on Start->Run and type in "debug" (without quotes). At the blinking prompt, type "DC000:50" (again, without quotes). The full BIOS version including sub-system ID will be displayed on the right hand side of the window.

If you do not see your sub-system ID listed below, please contact your system manufacturer for details. If you attempt to flash with the wrong update, the flash utility will not allow it.

Reasons for release:
Resolve issues with TV Output Control
Resolve issues with VIA 4X AGP motherboards
 
File Names:
viperII_bios_5932.exe
viperII_bios_5934.exe
viperII_bios_5954.exe