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From: Conan.Dickson@umagic.FIDONET.ORG (Conan Dickson)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: VGA monitor and its specification
Message-ID: <1515.286B563E@umagic.FIDONET.ORG>
Date: 28 Jun 91 15:11:51 GMT
Organization: Micro Magic
Lines: 22


        The reason 640*480*256 has a different scanning frequency 

is because the card maker was to cheap to make it the same as VGA 
standard.  I had the same problem, the solution is to buy a paradise 
1024 card or clone.  I bought this card and I now have 640*480*256 
on a IBM VGA monitor using standard frequency.  The reason most cards 
use a different frequency is to get rid of the flicker at 640*480. 
VGA uses 60Hz for 480 line modes and 70Hz for 350 and 400 line modes. 
 70Hz is better than 60Hz and the card manafacture assumed that if 

you bought a super VGA card(640*480*256 is a super VGA mode) that 
you would buy a better monitor.  BUY a good card that supports 640*
 
480*256 in standard VGA.  The Paradise card does this.  If you have 
any questions just ask, I have information on about 50 cards.
                                                Conan
 


--  
 * Conan.Dickson@umagic.FIDONET.ORG via Micro Magic BBS