Z158 MEMORY PROBLEMS ?

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#347

From: butler
Date: Fri, 06 Nov 1987 12:53

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	I have recently purchased a USED z158 system. XT turbo 2 floppies,
a 20 meg hard, running msdos 3.2.. The tag on it says z158-12.

	The manual that was given to me does not even come close to 
describing the mother board that I have. All jumpers,pictures etc
are different. SO......

On the mother board there is 27 sockets for ram chips. I have installed 
all 27 sockets with 256k chips and can only increase my memory to 396k. 
I have moved every conceivable jumper around to try and get some increase, 
but to no avail.

	I have talked to heathkit, and they seem no help. I am also on their
waiting list for the z158 technical manual set, and I've been waiting 4 months
now. {Apparently benton-harbor{sp !} is still developing it}.

	Does any one know what is going on....

	Is it a ROM CHANGE....

	Is the board REALLY unable to handle it .....


rgrds, al  {thank you }

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From: butler@cadwrk.dec.com
Newsgroups: comp.sys.zenith.z100
Subject: Z158 MEMORY PROBLEMS ?
Message-ID: <8711061253.AA23105@decwrl.dec.com>
Date: Fri, 6-Nov-87 07:53:24 EST
Article-I.D.: decwrl.8711061253.AA23105
Posted: Fri Nov  6 07:53:24 1987
Date-Received: Sun, 8-Nov-87 14:53:03 EST
Organization: Digital Equipment Corporation
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