Here are some BIOS Updates I have found for some very old computers & motherboards:
61-0731-001540-00111111-071595-440LX
This is most
          likely the AMIBIOS ID string for a KR632 motherboard
          which many 
      motherboard
          identification utilities out there "misidentify" it as a KR636
          motherboard. 
      This
          motherboard uses Intel 440LX [NOT Intel 440EX] chipset &
          AMI (American 
      Megatrends
          Inc.) BIOS.  If a so-called KR636 motherboard uses Intel
          440LX chipset 
      it's probably
          & really the KR632 motherboard. 
      The latest BIOS
          update for the KR632 motherboard is found here:
      
      http://www.bcmcom.com/tech/kr632/kr632bios.asp
    
If a so-called
          KR636 motherboard uses Intel 440EX [NOT Intel 440LX] chipset,
      
      then it is most
          likely to be an IN440EX motherboard which uses Award
          BIOS. 
      The latest BIOS
          update for the IN440EX motherboard is found here:
      
      http://www.bcmcom.com/tech/IN440EX/in440exbios.asp
    
In other
          words, so-called KR636 motherboards are not really
          KR636 motherboards 
      and are usually
          mis-identified by most system utilities.  For more BCM
          motherboard 
      downloads for
          current and legacy boards, go to this
            page. 
Caution: 
Note
          that after obtaining & running BIOS updates for your
          system, you must 
      enter BIOS
          setup and reset your settings or load default settings so that
          the newer 
      BIOS version
          can work properly with the options you have selected in the
          BIOS setup 
      program.
    
Let me know if you find any more hard-to-find BIOS updates out there on the web.
If you need to
          know what kind of BIOS your motherboard is using, download and
      
      run the CPU-Z
          tool and click on the Motherboard tab & look in the BIOS
          section. 
To download
          BIOS updates for your computer or motherboard, go to the web
          site 
      of the computer
          manufacturer or motherboard maker.  Don't bother visiting
          the web 
      sites of the
          actual BIOS makers because they never provide BIOS
          updates 
      directly to
          computer users. 
You can also
          use BIOS tools listed at the Majorgeeks.com
            BIOS page to gather 
      BIOS
          info.  Other BIOS related downloads can be found at this cnet.com BIOS
      
      page and the Softpedia BIOS
            drivers page. 
If your
          computer has an Intel motherboard, you can find instructions
          on updating 
      the BIOS on
          Intel motherboards here.
    
Also, see Wim's BIOS Forum site
          and post your request for a BIOS update or 
      post your BIOS
          problem there.  You can also check Wim's BIOS
            Updates page 
      for a list of
          motherboard and/or computer manufacturers. 
And here are
          some articles on how to update the computer's BIOS on the
          following 
      web sites:
    
How
to
            Update Your BIOS - PC World 
      How
to
            Perform a BIOS Upgrade - Hardware Secrets
      
    
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          2019 Noel Piring [aka. the ERPMan] 
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