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Path: utzoo!linus!wivax!decvax!harpo!seismo!hao!kpno!downey
From: downey@kpno.UUCP
Newsgroups: net.micro.pc
Subject: Hercules board causes chirping
Message-ID: <206@kpno.UUCP>
Date: Fri, 24-Jun-83 11:47:41 EDT
Article-I.D.: kpno.206
Posted: Fri Jun 24 11:47:41 1983
Date-Received: Sat, 25-Jun-83 18:43:41 EDT
Organization: Kitt Peak Natl. Obs.  Tucson, AZ
Lines: 16

I have a Hercules graphics board for my IBM PC. Everything works as I would
expect, but I can hear a faint chirping noise coming from the speaker
whenever the screen is changing. I am serious - others will verify I am not
imagining it. This happens whether I am using text or graphics mode,
although it is a little worse in graphics. I took it to the local Computerland
and they said they have heard it in a few others and not to worry about it.
I am willing to do that, since everything is working fine, but I'm still a
bit worried that some subtle timing or coupling problem isn't at fault that
might get worse when I add more option cards someday. All I have now is the
Hercules and the floppy controller cards. I didn't buy the standard mono
adapter board so I can not test whether it causes chirping too. Any comments?


Elwood Downey, Kitt Peak National Observatory, 950 N. Cherry Ave, Tucson, AZ
               (602) 325-9221
               {{{ucbvax|utah-cs|purdue|mcnc}!arizona}|unc|hao}!kpno!downey