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This forum is part of our mission to promote the preservation of vintage computers through education and outreach. (In real life we also run events and have a museum.) We encourage you to join us, participate, share your knowledge, and enjoy.

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"PM Sent!" messages (or, how to use the Private Message system)

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We are here to discuss vintage computing, so discussing software, books, and other intellectual property that is on-topic is fine. We don't want people using these forums to discuss or enable copyright violations or other things that are against the law; whether you agree with the law or not is irrelevant. Do not use our resources for something that is legally or morally questionable.

Our discussions here generally fall under "fair use." Telling people how to pirate a software title is an example of something that is not allowable here.


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If you are unsure you may consider sending a private message to a moderator instead.


New user moderation

New users are directly moderated so that we can weed spammers out early. This means that for your first 10 posts you will have some delay before they are seen. We understand this can be disruptive to the flow of conversation and we try to keep up with our new user moderation duties to avoid undue inconvenience. Please do not make duplicate posts, extra posts to bump your post count, or ask the moderators to expedite this process; 10 moderated posts will go by quickly.

New users also have a smaller personal message inbox limit and are rate limited when sending PMs to other users.


Other suggestions
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Reset the BIOS in an IBM PS/2

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    Reset the BIOS in an IBM PS/2

    [wiki]Category:How_To[/wiki]
    The BIOS in a PS/2 is maintained by the CMOS battery. When this battery fails the BIOS is lost and must be reset. Resetting the BIOS varies depending on the specific model though all models require a reference diskette to restore the BIOS, if your computer did not come with one, you can find them here: [footnote]http://wiki.vintage-computer.com/ind...rter_diskettes[/footnote].
    How to identify the problem



    If an IBM PS/2 shows error's 161 and 163 in POST then this guide should be used, if not and other error cods are seen please consult the forum here:[footnote]http://www.vintage-computer.com/vcforum/forum.php[/footnote]. Error 161 is a dead CMOS battery. Error 163 is called configuration error and usually occurs when the BIOS is reset from a dead battery. Usually the PS/2 will also show a message that looks like a crossed out ok with an arrow pointing to a stack of books.
    How do I repair the problem



    This problem can be resolved in a number of ways, varying depending on the model. BEFORE you start the procedure below I recommend testing the diskette image from the website above to confirm that the disk image is correct and that the drive itself is operational (any mechanical device is prone to failure).
    1ownload the reference disk on another computer, run the file and follow the on screen instructions to make a reference diskette for your specific PS/2.


    2:Test the reference disk to confirm operation.


    3:Open the computer (Take note of any removed screws/IC's), in most cases you will see a visible battery, in some cases however such as in a PS/2 model 55sx a Dallas clock module was used containing the battery. If the battery is visible, order a replacement and install in the computer. If you have a Dallas clock module see here: [footnote]http://www.youtube.com/watch?v=QbKLMWlBd3s[/footnote]


    4:Once step 3 is completed, reassemble the computer being careful to note the placement of screws and any removed cards/semiconductors.


    5:Start the computer, if step 3 was done correctly error 161 should no longer be present, though error 163 will appear.


    6:Turn off the computer, place the reference diskette you created in step 1 in the drive of your PS/2.


    7:Turn the computer on, this time error 161 will appear, but the computer will then load the BIOS off the disk.


    8:The diskette should allow you to restore the BIOS, do so now.


    9:Allow the computer to restart normally, your computer should if you followed the steps above boot into the Operating System on the disk (if present).

    #2
    Hi: I have a P/S 2 Model 55X, that needed the Dallas Clock Module, I replaced it and then used the reference Disk to get rid of errors 161, 162, now i get an error 165 (options not set), I run the automatic configuration and it tells me that I need a file for a card installed in slot number 4, I don't have that file, so my question is how do it get around this problem??

    Comment


      #3
      I assume that you've looked for the .ADF that's required here or here

      Comment


        #4
        Error 165

        Originally posted by Chuck(G) View Post
        I assume that you've looked for the .ADF that's required here or here
        I did look but don not which ADF file I need, and I don't know where SLOT 4 for is, my computer has only 3 slots.

        Comment


          #5
          I don't have any option cards installed on the computer, so I don't know which ADF file to download, also the message says this adapter is on slot 4 but I only see 3 slots on my particular machine.

          Comment


            #6
            Originally posted by lancelot1959 View Post
            I don't have any option cards installed on the computer, so I don't know which ADF file to download, also the message says this adapter is on slot 4 but I only see 3 slots on my particular machine.
            Your Model 55SX has only three slots. The fourth "slot" is actually connected to the hard drive via a long cable running from the top of the expansion slot riser and its 72 pin connector over to the hard drive. The hard drive is basically connected via a pared-down Microchannel slot to the rest of the system.

            As the hard drive and controller were both made by IBM, their ADF (and diagnostics) files are already on the reference diskette. If you are getting this error, the hard drive may be bad or its connection is faulty. A common problem is that of the mylar ribbon cable--it can be easily torn if mishandled.

            You may also have one of the (rare!) aftermarket riser cards that was made for the 55SX to enable the use of a standard IDE hard disk. Procom Technology manufactured such a thing. In that case, there will likely be several ICs on the riser board and the 72 pin connector that should be at the top may not be there any longer. If you have one of these, you will need to find a separate ADF. The QBMCA software, which can be turned up with a web search, can be downloaded and placed on a bootable floppy diskette. As long as the floppy disk drive works, it will tell you exactly what ADF you require.

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