Article View: comp.sys.ibm.pc
Article #41119Re: PROBLEM WITH AT's DMA CHIP!!!
From: mdonahue
Date: Wed, 10 Jan 1990 01:38
Date: Wed, 10 Jan 1990 01:38
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/* Written 12:56 am Jan 9, 1990 by gcw20877@uxa.cso.uiuc.edu in osiris.cso.uiuc.edu:comp.sys.ibm.pc */ /* ---------- "PROBLEM WITH AT's DMA CHIP!!!" ---------- */ Several months ago we purchased an IBM AT compatible computer from the CVN Television Network.. It's a MOTOROLA Brand AT Computer... There seems to be a problem with the system's DMA Chip.. Any backup program that uses direct DMA access for high speed backups (such as Fastback and PCtools PCBackup) creates unreliable backups... I can only get the LOW DMA speed to pass for Fastback Plus and even then the backups have sector errors when read back using the compare files feature... I heard that AMD brand of DMA chip had a problem with it... Does anyone know HOW TO SPOT and REPLACE a bad DMA chip?? I looked at the motherboard but have no clue as to what the DMA Chip looks like.. Also what would be a good replacement DMA Chip?? I would really like to get Fastback Plus working.. Please email as I don't keep up with this newsgroup... Thanks! George -- George Wang University of Illinois gcw20877@uxa.cso.uiuc.edu /* End of text from osiris.cso.uiuc.edu:comp.sys.ibm.pc */
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!ux1.cso.uiuc.edu!ux1.cso.uiuc.edu!osiris.cso.uiuc.edu!mdonahueReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!ux1.cso.uiuc.edu!ux1.cso.uiuc.edu!osiris.cso.uiuc.edu!mdonahue From: mdonahue@osiris.cso.uiuc.edu Newsgroups: comp.sys.ibm.pc Subject: Re: PROBLEM WITH AT's DMA CHIP!!! Message-ID: <7700092@osiris.cso.uiuc.edu> Date: 10 Jan 90 01:38:35 GMT References: <65648@<1990Jan9> Lines: 30 Nf-ID: #R:<1990Jan9:65648:osiris.cso.uiuc.edu:7700092:000:1149 Nf-From: osiris.cso.uiuc.edu!mdonahue Jan 9 15:37:00 1990