Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!mcsun!sunic!tut!jt19840
From: jt19840@tut.fi (Tuomi Jyrki Juhani)
Newsgroups: comp.sys.ibm.pc
Subject: Re: AMI BIOS Setup Question
Message-ID: <3142@tutor.tut.fi>
Date: 2 Mar 90 20:09:30 GMT
References: <6512@cadillac.CAD.MCC.COM>
Reply-To: jt19840@tutor.tut.fi (Tuomi Jyrki Juhani)
Distribution: comp.sys.ibm.pc
Organization: Tampere University of Technology, Finland
Lines: 22

In article <6512@cadillac.CAD.MCC.COM> sid%cad@MCC.COM (Sid Sidhartha) writes:
>I had bought a no-name clone 386/20 with 1M and recently upgraded it with
>another 1M.  After I installed the extra 1M and powered up the machine, I was
>told to run the set-up routine.  
>
>Right now, the machine recognizes the extra 1M, but, on my configuration table
>it still tells me that banks 2/3 are disabled. What gives?  How do I set it up
>so that it tells me that banks 2/3 are enabled with 256K DRAM chips? The setup
>instructions weren't too clear about this.
>

Most AT/386-clones accept 16MB of physical memory (with 1Mb DRAM devices).
This is divided in four banks, 4 MB each.  With 256Kb DRAM devices this
translates to four banks, 1 MB each.  Now you have the banks 0 (the first MB)
and 1 (the second MB) populated.  Thus banks 2/3 are marked as disabled, as
there is no memory in their area.  So, the BIOS is configuring the memory
all right.

-- 

Jyrki Tuomi
Internet:  jt19840@tut.fi    UUCP:  ..mcvax!tut!jt19840