Article View: comp.sys.ibm.pc.misc
Article #11469Re: REPLACING 286 MOTHERBOARD WITH 386
From: Stephen Dennison
Date: Thu, 27 Jun 1991 19:33
Date: Thu, 27 Jun 1991 19:33
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In article <1991Jun15.004351.11944@unlv.edu>, elvis@hammond.cs.unlv.edu (Frederick Haab) writes...
>In article <1991Jun14.164755.3515@eagle.lerc.nasa.gov> tostan@mars.lerc.nasa.gov writes:
>>Suppose I have a 286 pc with a floppy and hard disk, and a VGA monitor. Can
>>I simply pull out the 286 mother board and replace it with a 386? Or does it
>>have to be a 386SX? I don't have a pc, but I want to learn some things now
>>before buying. Will hard disk controller cards and VGA cards work in both
>>286 and 386 machines? What's the difference between an "8-bit VGA card" and
>>a "16-bit VGA card"? Will they both work on 286 and 386 systems? Thanks.
>
>
"Pay no attention to the man behind the curtain!"
The Wizard of OZ
>There is a difference in the way 286 and 386 get memory (16 and 32
>bits? anybody?), a 386sx is a 386 processor in a 286 chip, which is
>why they are slower then a 386dx (the normal 386), I believe you
>would have to get a 386sx, but there is also the matter of
>changing the clock speed. For this type of upgrade I think you
>would need an upgrade "kit" that takes care of all the little
>things involved with changing processors as well as changing the
>processor itself. BTW, a kit is still limited in memory access
>as your system is now.
The preceeding explanation is a bit convoluted and in error. You CAN use all
of your 8 & 16 bit cards in a 386DX motherboard providing:
The Motherboard in question has AT Style (ISA) 16 bit slots
available
The slots will accept 8 or 16 bit cards (Most ISA slots will)
I believe the fellow that responded to you *missed* the word motherboard in
your original post as the clock crystal and support chips he references are
all contained on the new motherboard.
Stephen
"My life is a sine wave. Now, if I could just get the damned
amplitude down..." Stephen Dennison
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<1991Jun14.164755.3515@eagle.lerc.nasa.gov> <1991Jun15.004351.11944@unlv.edu>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!usc!rpi!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!eagle!lims02.lerc.nasa.gov!afdenis From: afdenis@lims02.lerc.nasa.gov (Stephen Dennison) Newsgroups: comp.sys.ibm.pc.misc Subject: Re: REPLACING 286 MOTHERBOARD WITH 386 Message-ID: <1991Jun27.171632.2433@eagle.lerc.nasa.gov> Date: 27 Jun 91 19:33:01 GMT References: <1991Jun14.164755.3515@eagle.lerc.nasa.gov> <1991Jun15.004351.11944@unlv.edu> Sender: news@eagle.lerc.nasa.gov Reply-To: afdenis@lims02.lerc.nasa.gov Distribution: na Organization: Clyde's Reptile World Lines: 41 News-Software: VAX/VMS VNEWS 1.3-4