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IBM PS/2 Hard Drive Issues

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    IBM PS/2 Hard Drive Issues

    So I recently picked up a complete IBM PS/2 Model 55SX at a local thrift store for twenty bucks. It gets the 161 and 163 errors which is no big surprise however I noticed that the indicator light for the hard disk is always on from the moment you turn the machine on. I booted from a DOS disk and attempted to access the drive with no success, I then tried to run ScanDisk which popped up with "cannot examine drive C" and when I insert a DOS install disk it doesn't detect the drive. My guess is the drive is bad however I thought I might get a second opinion before I try and hunt down another ESDI drive.

    #2
    Originally posted by 404TimeNotFound View Post
    So I recently picked up a complete IBM PS/2 Model 55SX at a local thrift store for twenty bucks. It gets the 161 and 163 errors which is no big surprise however I noticed that the indicator light for the hard disk is always on from the moment you turn the machine on. I booted from a DOS disk and attempted to access the drive with no success, I then tried to run ScanDisk which popped up with "cannot examine drive C" and when I insert a DOS install disk it doesn't detect the drive. My guess is the drive is bad however I thought I might get a second opinion before I try and hunt down another ESDI drive.
    You need to take care of the 161/163 errors first, setup needs to be all in order for the HD to be usable.

    That said, you could still have a failed HD, would not be uncommon, I would honestly suggest trying to find an MCA SCSI card (easier than trying to find than a working EDSI drive), then you could use any SCSI HD, even modern ones, or even solid state options (like SCSI2SD).
    My Vintage computer/blog site
    Searching for a keyboard for a WYSEpc WY-1100.

    Comment


      #3
      Originally posted by RWallmow View Post
      That said, you could still have a failed HD, would not be uncommon, I would honestly suggest trying to find an MCA SCSI card (easier than trying to find than a working EDSI drive), then you could use any SCSI HD, even modern ones, or even solid state options (like SCSI2SD).
      That's a great idea. I have a 55SX with a "maybe dead" ESDI drive. Looked around and found an inexpensive IBM 92F0160 at serverworlds.com and a cheap cable and drive on ebay. Just have to find the reference disk for the adapter.

      With any luck, it all goes together and works. I haven't used SCSI in years - always seem to have the wrong cables in hand. The SCSI2SD looks really interesting.

      For @404TimeNotFound: first thing I'd do is make a reference disk and boot from that to go through setup process. You can also search for ways to fix or replace the clock module (I've done both). Also, see this thread: http://www.vcfed.org/forum/showthrea...s-2-55sx/page2, especially post #19 - I've had to do that to get one to boot from the hard drive.
      Last edited by jharre; December 6, 2016, 04:49 PM. Reason: Add info

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        #4
        Wrote and ran the setup disk, hard drive LED went off after the setup completed however since the Battery/RTC chip (who thought these were a good idea anyways?) is dead it didn't last the reset so fingers crossed it's just that I need to run it. I did see a walkthrough for a "hack job" for attaching a 3v button cell to the chip however I thought I'd try my luck with a NOS chip off of eBay before I try and jury-rig it, I'll let you know how that goes. Thanks for all the help and pointers so far, it's definitely making it easier.

        Comment


          #5
          Originally posted by jharre View Post
          ...found an inexpensive IBM 92F0160 at serverworlds.com and a cheap cable and drive on ebay. Just have to find the reference disk for the adapter.
          Here's the ADF's associated with that SCSI card, should be able to add them to your reference disk
          http://www.mcamafia.de/mcapage0/adf/@8efc.adf
          http://www.mcamafia.de/mcapage0/adf/c8efc.adf
          My Vintage computer/blog site
          Searching for a keyboard for a WYSEpc WY-1100.

          Comment


            #6
            Originally posted by RWallmow View Post
            Here's the ADF's associated with that SCSI card, should be able to add them to your reference disk
            Thanks for the links to those ADF's! The link I had ended up on a 404 page.

            Comment


              #7
              Originally posted by jharre View Post
              Thanks for the links to those ADF's! The link I had ended up on a 404 page.
              That MCA Maffia site is the go-to place for anything PS/2
              My Vintage computer/blog site
              Searching for a keyboard for a WYSEpc WY-1100.

              Comment


                #8
                Sigh!

                My luck (or lack thereof) with SCSI cables continues. All the parts I ordered are here now and the attached shows somewhat of a mismatch between the connector on the board and the connector at the end of the cable. Both are 68 pins, but they sure don't mate. After looking at connectors online I'm more confused than ever.

                Can somebody tell me the proper names for these connectors? I need a female something to a female something else, but hate to keep guessing.

                100_0782.jpg

                Comment


                  #9
                  proper name? no.

                  But I have successfully made my own adapters: http://www.vcfed.org/forum/showthrea...a-sucess-story
                  It is a mistake to think you can solve any major problems just with potatoes.

                  Comment


                    #10
                    I've heard the one on the card referred to as an "SCA68", but I doubt that it's an official name--it just resembles the 80-conductor SCSI SCA connector. Just call it "IBM Unique". The one on the right is an HD68 SCSI connector.
                    Reach me: vcfblackhole _at_ protonmail dot com.

                    Comment


                      #11
                      Originally posted by luckybob View Post
                      IBM decided it would be an AWESOME idea to use non-standard cable ends for their scsi cards.
                      Originally posted by luckybob View Post
                      But I have successfully made my own adapters: http://www.vcfed.org/forum/showthrea...a-sucess-story
                      Hey, luckybob - it is a great success story! That link showed "More than 10 available, 1 sold" so I jumped on it. I can whack a length off the long SCSI cable with the proper connector for the hard drive and crimp one of these on. Yahoo! It all should be working by the end of the week.

                      Originally posted by Chuck(G) View Post
                      Just call it "IBM Unique".
                      You are so right, like so much IBM stuff. They were probably the inspiration for some of Apple's oddball stuff.
                      Last edited by jharre; December 11, 2016, 10:45 AM.

                      Comment


                        #12
                        I would assume pinout is still the same on that connector as standard 68pin SCSI, in which case, you could just crimp on one of those oddball ends onto a standard 68pin SCSI cable. The connector is available from Mouser.
                        My Vintage computer/blog site
                        Searching for a keyboard for a WYSEpc WY-1100.

                        Comment


                          #13
                          hmm. that wasn't available when I looked to do mine. At $12 each connector, I would probably still do it the way I did it. You get 2 adapters, (or get 2 chances to make one) and you can use standard cables without modding them.
                          It is a mistake to think you can solve any major problems just with potatoes.

                          Comment


                            #14
                            Those cables aren't too hard to find if you know what to look for. IBM used them quite a bit on the RS/600 line of servers.
                            Most of the sellers on eBay want way too much for them though.

                            Check this out:

                            http://www.ebay.com/itm/IBM-40H7572-...MAAOSwrklVcG17

                            Comment


                              #15
                              It lives! Hard drive is still good and it first boots to DOS, pops up saying it has a double buffering manager installed, then proceeds to auto run a few things then loads up Windows 3.1. Looks like a fairly typical installation with the addition of Microsoft Office and the original Civilization game. Thanks for the help, definitely saved me from dropping a fortune on a new hard drive

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