06/94

CENTER.COM
For:    Cirrus Logic GD-5426/8/9 video boards
Purpose:72Hz refresh rate for 640x480 16M

WARNING-------------------------WARNING---------------------------WARNING
This program selects an untested dot-clock frequency on your Cirrus video
board.  It may not function with all Cirrus video boards.
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	This file is the same TSR that's included with the Cirrus Logic v1.4+ 
	distribution OEM software.  It only works with the Cirrus GD-5426/8/9
	chipset, with v1.30 BIOS or better (all GD-5428/9.)  Though not
	required, I also recommend MCLK (or CIRCLK) to boost the video-memory
	bandwidth.

What does CENTER.COM do?
	This TSR forces the 640x480 16M video mode to use a 72Hz refresh rate.
The Cirrus's standard BIOS supports 60Hz.  Please note that this increased rate
severely strains the available bandwidth on the video memory, and specifies an
extreme dot-clock frequency (~90MHz)  There is a possibility that this TSR
may cause your Cirrus Logic video board to malfunction.
	Due to timing differences, the 72Hz 640x480x16M mode won't be aligned
with the other 640 modes--the display will be about one clock period to the
left.  This can be corrected with UNIVBE51's "unicentr.exe" program.


USE AT YOUR OWN RISK!


Questions, comments?  You may contact me (Royce Liao) at

	email liaor@umich.edu
	www   http://www.umich.edu/~liaor