Chips and Technologies, Inc.
Release Notes
OC65540/545
65540/545 VGA-Compatible BIOS


Revision:      Version 2.7.5
Release Date:       January 25, 1996
====================================

1.   Modified the 32K BIOS to correctly set the DCLK to 28MHz in
     modes 00h+, 01h, 01h+,   02h+, 03h+, 07h, and 07h+.



Revision:      Version 2.7.1
Release Date:       October 30, 1995
====================================

1.   Modified the 32K BIOS to fix the garbage seen during mode
     change.

2.   Modified the BIOS to fix the ghosting problem in Text modes
     by programming XR03[5]=1.

3.   Removed support for text modes 60h and 61h from the 32K
     BIOS.

4.   Modified BIOS to fix a problem with installing Windows 95 by
     programming the SR index to 6 instead of 7.



Revision:      Version 2.7.0
Release Date:       August 7, 1995
==================================

1.   Modified the BIOS to use Clock 2 in all standard VGA CRT
     modes.

2.   Modified the BIOS to fix the out of sync problem in the CRT
     only mode.

3.   Modified the BIOS function AH=09H for Extended Packed Pixel
     Mode to support the background color.

4.   Fixed a problem in the Switch Display Function.

5.   Modified the VESA BIOS function 4F00h so that it returns the
     correct memory size.


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