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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.

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.


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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.


Rule 2: Stay close to the original topic being discussed
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  • 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.



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To put things in engineering terms, we value a high signal to noise ratio. Coming here should not be a waste of time.
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  • Use the Private Message system for posts that are targeted at a specific person.


Rule 4: "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:
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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.

Rule 5: 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.
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XTIDE Universal BIOS v2.0.0 beta testing thread

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  • rittwage
    replied
    I had all sorts of problems until I realized that while the IDE to CF adapters get enough power to "sort of" work sometimes, it is unreliable until you plug in the little mini-molex to power, instead of getting it the from the IDE connection.

    Works fine now...

    Leave a comment:


  • Stone
    replied
    Originally Posted by mac512
    Bettablue,

    I installed a 256mb compactflash card in my xt-cf lite card. I wasn't able to use more than 32mb until i realized that dos 3.3 was the problem. I din't know that dos 3.3 has a 32mb limit for hard drives. I switched to dos 7 and now it is working great wih full 256mb access in my 5150. Hope you have the same problem so you can solve it easily.
    Actually you could use all 256 MB with DOS 3.3. You just need 8 32MB partitions.

    Leave a comment:


  • bettablue
    replied
    Yeah, thanks. I had figured that out too. However, I do have DOS 6.22 to play around with. From what I gather by reading what I could find, I can use up to an 8 GB flash card without any issues, AND with minimal partitioning.

    I'm currently waiting for mine to get back to me. James Pearce asked me to return it to him so he could diagnose it for other problems it was experiencing. Since he offered to either repair/replace the card at no cost to me, how could I refuse? The XT-CF Lite was missing a capacitor, and one of the card readers pins was bent, so he fixed those issues, solidifying the bent pin with hot glue. (Nice touch to keep it from happening again). I'm just waiting for it to get back so I can reinstall it to my 5150 and begin transferring software and data to Alice, my other 5150, with attached expansion unit.

    Woo Hoo!!! I can't wait.

    Thanks again for the insight. Have a great weekend.

    Tom



    Originally posted by mac512 View Post
    Bettablue,

    I installed a 256mb compactflash card in my xt-cf lite card. I wasn't able to use more than 32mb until i realized that dos 3.3 was the problem. I din't know that dos 3.3 has a 32mb limit for hard drives. I switched to dos 7 and now it is working great wih full 256mb access in my 5150. Hope you have the same problem so you can solve it easily.

    Leave a comment:


  • Great Hierophant
    replied
    Originally posted by Krille View Post
    That's a peculiar question. It's like asking "how long is a rope?". The answer is it depends. How many controllers and drives are in the system (under the control of XUB)? Which drives are being used (CF or harddrives, older or newer drives)? Which modules were included in the build (if using a custom build) and what settings are used (is the serial drive detection set to always scan and if so, how many serial ports are in the machine and is there a server connected, etc)?

    It also depends on what you're comparing with. An earlier version of the BIOS? Booting from floppy? Generally speaking I would expect the boot time to be reduced in the latter case.

    I'm also curious to know why it matters. Is there a problem with excessively long boot times?
    I like to keep boot times to a minimum. I would just use one CF card and no serial anything.

    Leave a comment:


  • mac512
    replied
    Bettablue,

    I installed a 256mb compactflash card in my xt-cf lite card. I wasn't able to use more than 32mb until i realized that dos 3.3 was the problem. I din't know that dos 3.3 has a 32mb limit for hard drives. I switched to dos 7 and now it is working great wih full 256mb access in my 5150. Hope you have the same problem so you can solve it easily.

    Leave a comment:


  • Krille
    replied
    Originally posted by Great Hierophant View Post
    How much time does the current XT-IDE BIOS add to the boot time of an 8088 system?
    That's a peculiar question. It's like asking "how long is a rope?". The answer is it depends. How many controllers and drives are in the system (under the control of XUB)? Which drives are being used (CF or harddrives, older or newer drives)? Which modules were included in the build (if using a custom build) and what settings are used (is the serial drive detection set to always scan and if so, how many serial ports are in the machine and is there a server connected, etc)?

    It also depends on what you're comparing with. An earlier version of the BIOS? Booting from floppy? Generally speaking I would expect the boot time to be reduced in the latter case.

    I'm also curious to know why it matters. Is there a problem with excessively long boot times?

    Leave a comment:


  • Great Hierophant
    replied
    How much time does the current XT-IDE BIOS add to the boot time of an 8088 system?

    Leave a comment:


  • pearce_jj
    replied
    Sounds like the card might have an issue - I'll send you PM.

    Leave a comment:


  • bettablue
    replied
    Originally posted by pearce_jj View Post
    Also check the card is actually configured for 300h - see switch settings here (if it's one of my cards).
    The XT-CF Lite is one of yours. The CF card is a SanDisk 32 MB. When jimmy (in the forums) was putting the system together for me, he had a LOT of problems getting it to work with a CF card ANYTHING larger than 32 MB. He attempted to use a 100 MB, and a 1 GB drive, and neither would work at all. The only one he was eventually able to get working was the 32 MB card he sent me.

    The funny thing is that the card and system were working fine one day, then the next it wouldn't, and the computer went into BASIC on the computer's ROM.

    Leave a comment:


  • pearce_jj
    replied
    Also check the card is actually configured for 300h - see switch settings here (if it's one of my cards).

    Leave a comment:


  • Krille
    replied
    Originally posted by bettablue View Post
    What am I missing?
    Make sure the CF card is properly inserted. If this doesn't fix it then there is some kind of hardware problem (since the CF card is not detected by the BIOS). Also, in case you don't know this, the CF cards can not be removed/inserted while the machine is running (they are not hotpluggable). So remember to always power down before removing or inserting the card.

    Leave a comment:


  • bettablue
    replied
    Attempting to fix a problem that just occurred and cannot seem to resolve.

    I just got this 5150 working with an XT-CF Lite with XT-IDE universal BIOS. Everything was working OK. The CF card I'm using is a 32 Meg Sandisk. I added a directory of programs to the card that I was going to bring over to me other 5150 via floppy. The floppy disc was not inserted yet. When I booted the computer it displayed 4 "menu items" showing. Then below it shows "Master@300H Not Found" and under that "Slave@300H Not Found". I cannot get the system to boot into DOS on the CF card. My autoexec.bat reads as follows:

    ECHO OFF
    CLS
    PATH=C:\DOS;NCMNDER
    PROMPT $P$G
    C:\AST\ASTCLOCK
    C:\NCMNDER\NC
    VER

    What am I missing?


    .

    Leave a comment:


  • pearce_jj
    replied
    Can you post a photo of the card, and the screen output in question?

    Leave a comment:


  • bettablue
    replied
    Originally posted by pearce_jj View Post
    Great news!

    Yes it will work with the original; use the 8K binaries.

    Aitotat - don't suppose the flash utility supports sst39sf0x0a chips?
    I've just been playing around with my IBM 5150 which has an XT-CF Lite board installed. From the information I get from jimmy, who gave me the computer, it is a revision 4. During boot, I get the 4 blue/cyan bars at the top of the screen, and just below those, I get what appears to be an error 601.

    Then a couple of lines below that, I get another message stating Slave @300h Not Found after loading the AST clock and Norton Commander.

    Everything SEEMS to be OK at that point, but being somewhat of a perfectionist these inconsistencies still bother me. Are these important? Looking at the autoexec, does it appear that anything is inherently wrong with the setup?

    Leave a comment:


  • Malc
    replied
    Originally posted by Krille View Post
    Judging by the lack of responses, you are apparently the only one with a 16-bit IDE controller in a 5150. I guess there isn't much else to do but wait until someone else tries this. Or, if someone knows the differences in hardware between the 5150 and 5160 that could also potentially be very helpful.
    Haha It's not that i want or need a 16-bit IDE controller in my 5150, It's just that i was curios as to why it doesn't work, My curiosity has died off now and she's back to the way she's always been a twin 360k floppy machine.

    Leave a comment:

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