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From: secrist@msdoa2.enet.dec.com ("That was Zen, this is Tao.")
Newsgroups: comp.sys.zenith.z100
Subject: Re: S-100 RAM in an HZ100 ?
Message-ID: <9003291123.AA14619@decpa.pa.dec.com>
Date: 29 Mar 90 11:31:35 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 26

;				...
;	(stick cards in any where).   If both Z-100s have the same amount
;	of maximum RAM (192K old chipset 64Kx1 DRAMs or 768K new chipset
;	256Kx1 DRAMs) and the cards work in one but not the other,
;	perhaps the working unit has a slower system clock (5MHz). 
;	 
;	What size RAM does each unit have?  Boot Monitor <S>?

The systems are both old motherboard 192K DRAM configurations.
Neither have had their clock speeds modified since the factory.
His was a low-profile with ROM version 1.2 and MS-DOS V2.13.
Mine is an all-in-one with ROM version 2.5 and MS-DOS V2.21.
This really stumps me since mine is all later revisions.

I have to check with him, by my monitor <S> comes up with:

128kb of contiguous RAM
32kb Video memory
Monochrome

Thusfar I am stumped !  Each RAM card has 64kb of static RAM
on it.  What do you think the addresses of such beasts should
be set for ?  

Regards,
rcs