Considerations in the Use of the AMI BIOS with OS/2

                               Washburn & Co.
             Distributors of AMI Motherboard and BIOS Products
                  3800 Monroe Avenue, Pittsford, NY 14534
                       716-248-3627  FAX 716-381-7549

           Considerations in the Use of the AMI BIOS with OS/2:

AMI BIOS's of modern vintage provide a Screen ID Code, visible at the lower
left of the screen during the initial RAM count, and which can be made to
return by resetting with Ctrl-Alt-Del:

AMI BIOS and AMI BIOS Plus:
               aaaa-bbbb-mmddyy-Kc
AMI Hi-Flex BIOS:
               ee-ffff-bbbbbb-gggggggg-mmddyy-hhhhhhhh-c

If the screen ID code is in a form other than this the BIOS is either extremely
old, or was produced by a company with a source code license.  In the former
case contact us for update information, but in the latter case only the
motherboard manufacturer will be able to provide further information or
updates.  Everex 386 BIOS's are in this latter category.

General Rules:
1.  If an IDE type hard drive is installed the date ("mmddyy") should be 040990
or later for use with ANY operating system, DOS included, due to the special
timing requirements of IDE drives which were accommodated on the date noted.
2.  With any other drive type, such as MFM, RLL, ESDI or SCSI, OS/2 may be
expected to install and operate correctly if "mmddyy" is 092588 or later,
provided that the Keyboard Controller Revision Level is suitable for the
version of OS/2 being used. Note also that in the case of SCSI hard drives a
driver compatible with the version of OS/2 being installed is likely to be
required, and a special installation procedure may apply.
3.  The Keyboard Controller Revision Levels ("c" in the Screen ID Code Examples
above) expected to produce proper installation and operation of the various
OS/2 versions are as follows:
          OS/2 1.0 or 1.1:    8, B, D or F
          OS/2 1.2x:          D or F
          OS/2 1.3x or 2.0:   F
4.  If the Keyboard Controller Revision Level shows as 0 then the Keyboard
Controller chip is NOT an AMI chip, even if an AMI License Sticker was applied
to it by the motherboard OEM.  This means that its performance under OS/2 is
unknown - it may or may not work correctly.  In some cases an AMI chip can
successfully replace a non-AMI chip, but this is NOT a general rule - often the
non-standard Keyboard Controller was used to combine motherboard functions not
normally part of the Controller, and substituting a standard chip will cause
the board to not function at all.  In this case there is no solution other than
replacement of the board.  A Revision Level of 9 accompanied by a non-standard
ID Code also indicates a non-standard controller (and BIOS), and the
motherboard manufacturer should be contacted for further information.

BIOS Updates:
If a BIOS prior to the dates noted above requires replacement, note the
following:
1.  AMI BIOS and BIOS Plus series BIOS (16 character ID Code) for CACHED
motherboards are customized for individual motherboard designs, and can ONLY be
obtained from the motherboard OEM, with only THREE common exceptions:
     a) BIOS's with "aaaa" = E307 can often be replaced with a standard
     type.
     b) BIOS's for Northgate or Motherboard Factory motherboards EXCEPT
     the Northgate Slimline can be replaced by a standard type.
     c) BIOS's with "aaaa" = DAMI, DAMX, or EDAMI are usually for
     cached boards designed and/or built by AMI, and if so can be
     updated.
2.  The complete Screen ID Code is required to properly address whether a BIOS
update for other motherboards can be provided, and in the case of the Hi-Flex
BIOS the complete SECOND and THIRD lines of the ID Code are also necessary.  If
not immediately visible on the screen they may be viewed by pressing the <INS>
key during boot-up.

Comments

Post a Comment

Popular posts from this blog

BOTTOM LIVE script

                                  BOTTOM                                   ======                     by Adrian Edmondson and Rik Mayall                                 Bottom Live                                 ===========                               Richie  Rik Mayall                                Eddie  Adrian Edmondson Introduction ------------ [Opening shot of theatre, with huge pictures of Richie and Eddie. Caption: "Live from the Mayflower Theatre, Southampton".] Vox Pop 1:  So I'm hoping that this is a lot ruder than the TV, because             they can get away with it. [Cut to Ade's dressing-room door. It opens to reveal a clothes rail, its only contents a brown jacket.] Vox Pop 2:  I just think they're ace, you know, absolutely excellent. [Cut to dressing-gown, pan across a pair of glasses and a revolver.] Vox Pop 3:  It couldn't be too rude, I mean that's what young people want. [Rik's dressing-room door.]
Read more

Evidence supporting quantum information processing in animals

              Evidence supporting quantum            information processing in animals                    James A. Donald                    1068 Fulton Av                    Sunnyvale, CA 94089-1505                    USA I show that quantum systems can rapidly solve some problems for which finite state machines require a non- polynomially large time. This class of problems is closely related to the class of problems that animals can solve rapidly and effortlessly, but are intractable for computers by all known algorithms. 1. Introduction      Animals, including very simple animals, can rapidly and effortlessly perceive objects, whereas computers take nonpolynomial time to do this by all known algorithms [1, 2, 3, 4, 5, 6]. Our persistent inability to emulate perception gives reason to doubt the current paradigm and to look for an alternative paradigm.      Penrose[7] and many others [8, 9, 10] argue from practical considerations, Godel's theorem, and
Read more

ARMIES OF CHAOS

                          ARMIES OF CHAOS -      Before anyone proposes more gun control, he or she should know  about a simple, deadly weapon 4 times as powerful as Dirty Harry's  legendary .44 Magnum -- and at least twice as concealable -- that  _can't_ controlled.        This simple, deadly weapon can be made by anyone -- even a  child -- with unpowered hand tools in an hour's time using $5 worth  of materials, most of which are available around the house anyway.   In traditional form it's reusable an unlimited number of times, and  modern plastics have rendered its disposable version electronically  undetectable.  You can clear a room with such a weapon (more of a  hand-held directional grenade than a gun -- sort of a recycleable  Claymore mine) and it's just one of hundreds of similar time-proven  designs.        Complete instructions for building this simple, deadly weapon  could be given in half the space I'm using here and not require a  single illustrat
Read more