Path: utzoo!attcan!uunet!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!samsung!xylogics!world!jim From: jim@world.std.com (James D. McNamara) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: HD interferes with ATI VGA1024 Message-ID: <1990Jul19.021714.10040@world.std.com> Date: 19 Jul 90 02:17:14 GMT References: <11547@ingr.com> Organization: Software for the People Lines: 42 To: fordke@ingr.com Subject: Re: HD interferes with ATI VGA1024 Newsgroups: comp.sys.ibm.pc.hardware In-Reply-To: <11547@ingr.com> Organization: Software for the People Cc: Bcc: In article <11547@ingr.com> you write: > >I have two ATI VGA Wonder cards, one is about 10 months older than the >other. The newer one is called a VGA1024 and has a much thinner manual >which does not include any phone numbers for ATI. My problem is when >the hard disk is accessed, the video receives interference like a burst >of RF. No screen data is lost, it just makes the screen fuzzy for the >duration of the access. It is only the newer card that has the problem. >I have a second machine and have determined this by swapping cards, etc. >The drives are Seagate ST277R-1 and the controllers are Adaptec and >Western Digital. Any ideas? I use an ATI VGA Wonder 512K ("VGA1024"), and have a Seagate ST251-1 drive. Same problem! It seems when the r/w heads seek, my horizontal gets "wavey" (as opposed to "fuzzy", which to me implies snow). I thought that maybe a well-placed capacitor may cut out the noise, but I can't make any recommendations. I think it might be power surging, as opposed to RF. BTW, my monitor is a NEC 3D. Anybody encountered/solved this one, yet? SIDE NOTE: I've recently ignored the "sticktion" discussion regarding some HD's. Well, I think it happened to me. I'd appreciate if somebody can summarize on net or email me. Thanks. -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - James D. McNamara, jacked-in at... | jim@world.std.com 45 Cleveland Street #1, Arlington, MA 02174-6915| Phone: (617) 648-2440 -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - James D. McNamara, jacked-in at... | jim@world.std.com 45 Cleveland Street #1, Arlington, MA 02174-6915| Phone: (617) 648-2440