Announcement

Collapse

Forum etiquette

Our mission ...

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.

This forum has been around in this format for over 15 years. These rules and guidelines help us maintain a healthy and active community, and we moderate the forum to keep things on track. Please familiarize yourself with these rules and guidelines.


Remain civil and respectful

There are several hundred people who actively participate here. People come from all different backgrounds and will have different ways of seeing things. You will not agree with everything you read here. Back-and-forth discussions are fine but do not cross the line into rude or disrespectful behavior.

Conduct yourself as you would at any other place where people come together in person to discuss their hobby. If you wouldn't say something to somebody in person, then you probably should not be writing it here.

This should be obvious but, just in case: profanity, threats, slurs against any group (sexual, racial, gender, etc.) will not be tolerated.


Stay close to the original topic being discussed
  • If you are starting a new thread choose a reasonable sub-forum to start your thread. (If you choose incorrectly don't worry, we can fix that.)
  • If you are responding to a thread, stay on topic - the original poster was trying to achieve something. You can always start a new thread instead of potentially "hijacking" an existing thread.



Contribute something meaningful

To put things in engineering terms, we value a high signal to noise ratio. Coming here should not be a waste of time.
  • This is not a chat room. If you are taking less than 30 seconds to make a post then you are probably doing something wrong. A post should be on topic, clear, and contribute something meaningful to the discussion. If people read your posts and feel that their time as been wasted, they will stop reading your posts. Worse yet, they will stop visiting and we'll lose their experience and contributions.
  • Do not bump threads.
  • Do not "necro-post" unless you are following up to a specific person on a specific thread. And even then, that person may have moved on. Just start a new thread for your related topic.
  • Use the Private Message system for posts that are targeted at a specific person.


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

This forum has a private message feature that we want people to use for messages that are not of general interest to other members.

In short, if you are going to reply to a thread and that reply is targeted to a specific individual and not of interest to anybody else (either now or in the future) then send a private message instead.

Here are some obvious examples of when you should not reply to a thread and use the PM system instead:
  • "PM Sent!": Do not tell the rest of us that you sent a PM ... the forum software will tell the other person that they have a PM waiting.
  • "How much is shipping to ....": This is a very specific and directed question that is not of interest to anybody else.


Why do we have this policy? Sending a "PM Sent!" type message basically wastes everybody else's time by making them having to scroll past a post in a thread that looks to be updated, when the update is not meaningful. And the person you are sending the PM to will be notified by the forum software that they have a message waiting for them. Look up at the top near the right edge where it says 'Notifications' ... if you have a PM waiting, it will tell you there.

Copyright and other legal issues

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.


Reporting problematic posts

If you see spam, a wildly off-topic post, or something abusive or illegal please report the thread by clicking on the "Report Post" icon. (It looks like an exclamation point in a triangle and it is available under every post.) This send a notification to all of the moderators, so somebody will see it and deal with it.

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
  • Use Google, books, or other definitive sources. There is a lot of information out there.
  • Don't make people guess at what you are trying to say; we are not mind readers. Be clear and concise.
  • Spelling and grammar are not rated, but they do make a post easier to read.
See more
See less

My new PS/2 Model 30-286

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    My new PS/2 Model 30-286

    Repost from my other thread, thought this would be more relevant here:
    Well, I pulled apart the PS/2 to take a look inside, and found a remarkably clean computer. Hardly any dust to be found. After laughing at the power switch for a while, I removed the modem and put in an Intel Etherexpress 16. However, I noticed this enormous full-length expansion card in the top ISA slot. It had a big plastic cover towards the front which read "Hardcard II 80". Interesting. I'll google that later. I got the etherexpress put in, took some pictures (you'll be able to find a full write-up on retro-box.net when I get my server turned back on), and wrapped it all up. Upon researching the hardcard, it turns out the Hardcard II 80 was an 80mb ISA hard drive expansion for the PS/2 and compatibles. Interesting. I booted up and typed in "D:" the results of which were seen immediately. I then did a DIR, and was greeted with what looked like a standard win3.1 installation with Word and some fonts. I cd'd to the windows directory and ran win, and saw that I was correct. I have no clue how the previous user used this thing with Win3.1, as it was unusably slow for me. Finding nothing of interest on the 80mb hard drive, I formatted it. Pretty interesting stuff. I've got PC-DOS 7 running, and now I just need to replace the RTC chip (those are socketed, right? I can just pull them out?)
    Questions? Comments? Ideas on stuff I could do? Anyone have a clue how to remove the write-protection that seems to be enabled on the HardCard? I can't format or write any changes to it, so I'm assuming that's the issue.

    Also, what would you guys appraise this system at? Hardcard, monitor, pc, and all?
    [..RETRONET..] http://www.retro-box.net

    IRC, FTP, HTTP and Quake!

    Check us out (we have cookies)!

    #2
    The RTC is Soldered! And trying to get a replacement could be a Pain. As for formatting I think the Plus Hardcards needed a hardware driver loaded through config.sys. Google for ATDOSXL.SYS I think thats the one you need.
    *FrankG*

    Comment


      #3
      Originally posted by Chromedome45 View Post
      The RTC is Soldered! ....
      I don't think they are always soldered. I've had three PS/2 30-286 boards pass through my hands and in each case the Dallas clock/battery was in a socket.

      Tez
      ------------------------------------------------
      My vintage collection: https://classic-computers.org.nz/collection/
      My vintage activities blog: https://www.classic-computers.org.nz/blog/
      Twitter: @classiccomputNZ ; YouTube Videos: (click here)

      Comment


        #4
        Same here. It's in a socket. Mine will boot even though the RTC battery is dead.

        Dallas batteries arent that hard to get. And even if they are soldered, just perform the hack on the battery.
        ~Ian~

        Remember, wherever you go, there you are.

        Comment


          #5
          Well in mine it's soldered. Lucky me huh? I had thought they were all soldered in. My mistake
          *FrankG*

          Comment


            #6
            TandyMan100: I have no clue how the previous user used this thing with Win3.1, as it was unusably slow for me.
            My theory is that people tend to upgrade computers shortly before they discard them. The upgrade, being more resource hungry, runs slowly and induces the owner to look for new hardware. I base this theory on the number of discarded computers I've seen with a sticker for the previous version of the OS.
            WANTED: Cardinal 2450MNP modem.

            Comment


              #7
              Originally posted by Chromedome45 View Post
              The RTC is Soldered! And trying to get a replacement could be a Pain. As for formatting I think the Plus Hardcards needed a hardware driver loaded through config.sys. Google for ATDOSXL.SYS I think thats the one you need.
              The hardcard is accessible with no drivers whatsoever under PC-DOS. Loads right up, I can read from it just fine as my D:\ drive, but no matter what I do, I can't write to the little bugger.

              Originally posted by DOS lives on!! View Post
              Same here. It's in a socket. Mine will boot even though the RTC battery is dead.

              Dallas batteries arent that hard to get. And even if they are soldered, just perform the hack on the battery.
              I *think* mine is socketed. There's an extra layer of plastic underneath the big black box of the RTC itself, so I think it's a socket. I sure as heck can't get it out with my bare hands, though. Boots just fine, I just have to push F1 every time.

              Originally posted by Ole Juul View Post
              My theory is that people tend to upgrade computers shortly before they discard them. The upgrade, being more resource hungry, runs slowly and induces the owner to look for new hardware. I base this theory on the number of discarded computers I've seen with a sticker for the previous version of the OS.
              Yeah, from what I know this computer previously belonged to a church, so that's pretty likely. The fact it has a write-protected hardcard in it also leads me to believe that it was for public use, or use by people with no clue what they were doing (Word, Windows, drivers and such are all on the D:\ drive, it looks like. The C:\ drive just holds documents and a base DOS installation).
              [..RETRONET..] http://www.retro-box.net

              IRC, FTP, HTTP and Quake!

              Check us out (we have cookies)!

              Comment


                #8
                Originally posted by Chromedome45 View Post
                As for formatting I think the Plus Hardcards needed a hardware driver loaded through config.sys. Google for ATDOSXL.SYS I think thats the one you need.
                Frank is right on this.

                Originally posted by TandyMan100 View Post
                The hardcard is accessible with no drivers whatsoever under PC-DOS. Loads right up, I can read from it just fine as my D:\ drive, but no matter what I do, I can't write to the little bugger.
                Some of the Plus Development HardCards need the driver that Frank mentioned. They are read only without the driver loaded. I have 2 XL 105's and I couldn't write to them until I loaded the device driver. At first I thought the drives were dead. The previous owner had formatted the drives so there wasn't any data and I couldn't write to them.

                Comment


                  #9
                  Originally posted by TandyMan100 View Post
                  The hardcard is accessible with no drivers whatsoever under PC-DOS. Loads right up, I can read from it just fine as my D:\ drive, but no matter what I do, I can't write to the little bugger.
                  Consider yourself lucky; they had a very high failure rate. The XL models in particular used EEPROMS that fade after 5-10 years (the drive is fine, but the EEPROM is empty). I would read the data off of it quickly.

                  I have the HardCard 40 diskette but all it comes with is a partitioning utility (that splits the 40MB drive into two 20MB partitions) and the ATDOS.SYS driver which, as noted above, doesn't seem necessary to use the drive.

                  (edit: I stand corrected, the driver is required to do writing. You have to boot from a diskette with the driver loaded, then you copy the driver to the hard drive, then you're set.)
                  Offering a bounty for:
                  - A working Sanyo MBC-775 or Logabax 1600
                  - Music Construction Set, IBM Music Feature edition (has red sticker on front stating IBM Music Feature)

                  Comment

                  Working...
                  X