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神经网络昆斯林的新闻组分类2006

From: [e-mail] (Philip Schuler)
Sender: [e-mail]
Path: cantaloupe.srv.cs.cmu.edu!magnesium.club.cc.cmu.edu!news.sei.cmu.edu!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!wupost!uunet!Clone!UUCP
Newsgroups: comp.sys.mac.hardware
Subject: Re: CENTRIS 610 VIDEO PROBLEM-HELP
Message-ID: <[e-mail]>
Date: Sun, 18 Apr 1993 10:53:24
Lines: 28

> When the computer is set for 256 colors and certain operations are done,
> particularly vertical scrolling through a window, horizontal white lines
> appear on the monitor (which generally but not always spare open windows). 
> These lines accummulate as the operation is continued.  If a window is
moved
> over the involved area of the screen and then moved away the line disappear
> from that area of the screen.  This problem is not observed if the monitor
is
> configured for 16 colors or a 14 inch Apple monitor with 256 colors is
used.
> 
> I suspect a bad video RAM chip but cannot be certain.  The problem has been
> apparent since day 1 but has gotten worse.
 
Andrew,
        I had the same problem when I bought some additional VRAM. In my case
the problem arose when I set the color depth to 16 bit on a 14" monitor.  The
problem was solved by sending back the SIMMs and getting different ones. 
Someone on a local bbs I use said that the problem is with incompatible VRAM
chips and that Apple has some kind of repair/technical note discussing the
issue.

        If you've had the problem since day 1, I'd take the chips back to
whomever sold them to you and get good ones.

--Phil Schuler