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From: plim@hpsgpa.HP.COM (Peter Lim)
Newsgroups: comp.sys.ibm.pc
Subject: Re: EMS Boards
Message-ID: <340008@hpsgpa.HP.COM>
Date: 9 Oct 89 11:38:33 GMT
References: <345@uwm.edu>
Organization: HP Singapore IC Design Ctr
Lines: 26

> 
> no longer made (for the XT).  Some say they have EMS boards but that they do
> not meet the LIM 4.0 specs.  What are the disadvantages of not meeting
> LIM 4.0 specs?
> 
The most important difference between LIM 4.0 and LIM < 4.0 boards is
swapping below 640K. Able to swap below 640K means that the EMS memory
is not just good for storage, it means program can actually run in the
EMS. So, you can actually get some kind of acceptable multi-tasking with
LIM 4.0. Of course you need a machine which is LIM 4.0 compatible. What
this means is either the RAM on the motherboard can be switched out
of the 1MB address space or you must be able to remove some motherboard
RAM (e.g. all those above 256K).


Regards,
Peter Lim.
HP Singapore IC Design Center.

      E-mail address:              plim@hpsgwg
      Snail Mail address:          Peter Lim
                                   Hewlett Packard Singapore,
                                   (ICDS, ICS)
                                   1150, Depot Road,
                                   Singapore   0410.
      Telephone:                   (065)-279-2289