Path: utzoo!attcan!uunet!decwrl!bacchus.pa.dec.com!shlump.nac.dec.com!ashok.nac.dec.com!nadkarni
From: nadkarni@ashok.nac.dec.com (ashok p. nadkarni)
Newsgroups: comp.sys.ibm.pc
Subject: Re: HD interferes with ATI VGA
Message-ID: <13314@shlump.nac.dec.com>
Date: 11 Jul 90 12:58:51 GMT
References: <1990Jul11.014803.568@iowasp.physics.uiowa.edu> <11438@ingr.com>
Sender: news@shlump.nac.dec.com
Reply-To: nadkarni@ashok.nac.dec.com (ashok p. nadkarni)
Organization: Digital Equipment Corporation
Lines: 15

This information is second hand from a friend. It seems some of the ATI
VGA Wonder cards
shipped had a faulty SN74LS241N chip on board. Any kind of power supply
noise or fluctuation
(as when you access the hard disk), causes problems in the video
display. The ATI boards have
a WU or WC prefix (I'm not too sure about this). 

Sorry don;t have any more info. The machine my friend had was from
Gateway but I imagine the same problem could exist in any ATI card.  If
you bought the machine from Gateway, give them a call. If you put it
together yourself, you might want to give ATI a call. Let us know what happens.
I have a ATI VGA myself though I have not seen this problem.

/Ashok