Article View: comp.sys.ibm.pc
Article #42476Re: Yet another 640K question
From: orand
Date: Wed, 14 Feb 1990 18:21
Date: Wed, 14 Feb 1990 18:21
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In article <1990Feb11.191736.7917@agate.berkeley.edu>, ilan343@violet.berkeley.edu writes:
> How many of the 386/AT motherboards out there are able to assign the
> top 384K of the first 1M as exTENded memory?
>
> This question was discussed a while ago in this news group, but I don't
> remember seeing a definite answer.
>
> I know the DTK/386 20Mhz motherboard (with a DTK BIOS) can do it.
> However, I haven't seen any other motherboards used by low-end clone
> makers that claim this capability. If you believe the sales people in
> the stores I went, once you disable the ROM shadowing in their machines
> those memory locations (the top 384K) are lost.
>
> Why is the DTK machine different? Motherboard, BIOS, memory
> configuration?
I have a nameless clone 286 motherboard that is able to assign the memory
above the 640k as extended. The only problem is that when I put my 4Meg EMS
board in, this memory is lost. Instead of reporting 5 Meg of memory, my system
reports 4+640k (whatever that turns out to be.)
Anyway, this was off the topic, but I wanted to let you know that other
generic boards will use the 384 as extended.
brady...
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Brady Orand - University of Kansas Computer Center Lawrence, Ks. 66045
ORAND@kuhub.cc.ukans.edu
Work: (913) 864-0490
Home: (913) 749-1341
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!zaphod.mps.ohio-state.edu!wuarchive!kuhub.cc.ukans.edu!orand From: orand@kuhub.cc.ukans.edu Newsgroups: comp.sys.ibm.pc Subject: Re: Yet another 640K question Message-ID: <22227.25d94d54@kuhub.cc.ukans.edu> Date: 14 Feb 90 18:21:40 GMT References: <5420@bgsuvax.UUCP> <NELSON.90Feb10222008@image.clarkson.edu> <1990Feb11.191736.7917@agate.berkeley.edu> Organization: University of Kansas Academic Computing Services Lines: 33