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  1. Replies
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    When I was speed reading, "sysclk.com - sets...

    When I was speed reading, "sysclk.com - sets system date/time to rtc values", I read the direction as system clock to RTC clock. I suggest "from" in place of "to".

    I will add the software to...
  2. Because the subject is an IBM 5150, not a clone,...

    Because the subject is an IBM 5150, not a clone, I brought to the OP's attention that there is no need to check the mating connector on the 5150 motherboard (which is 'P1').
    Of course, there was an...
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    The other way round ?

    The other way round ?
  4. When I temporarily bring out a 5150 or 5160...

    When I temporarily bring out a 5150 or 5160 motherboard out of storage, then go looking for a PSU for it, often, the PSU in shortest reach is a clone AT one.
    The +5V going to pin 2 of plug P8 is of...
  5. No other components are required if you want to...

    No other components are required if you want to go down the (unusual) route of connecting a rechargeable battery to a connector that will not charge the battery.

    As I stated before, there is...
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    Welcome to these forums. A reference diagram...

    Welcome to these forums.


    A reference diagram is at [here].


    So cable connected to J1 on the controller.


    You will be referring to J5 on the controller.
  7. Welcome to these forums. Yes, the user's...

    Welcome to these forums.


    Yes, the user's guide for the GMB-486UN indicates that JP1 is for an 'external' battery.


    Read the information at [here].

    From that, the 'external battery'...
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    Some earlier related threads: 47127, 62068, 64341

    Some earlier related threads: 47127, 62068, 64341
  9. Welcome to these forums. I wish more people...

    Welcome to these forums.


    I wish more people would do that.



    201 = RAM error
    000000 = address 000000
    0800 = error in bit 11
  10. Additional information on the subject card put at...

    Additional information on the subject card put at [here].
  11. Replies
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    The maintenance manual...

    The maintenance manual for the 410 series includes a drawing of the 410's 3.5" diskette drive on page 1-9. Does your drive look like that?


    Hard to tell.

    In the connectors, do you see any bent...
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    (Info for others: On the 16KB-64KB type of 5150...

    (Info for others: On the 16KB-64KB type of 5150 motherboard, the subject caps are 2-legged, not 3-legged.)

    It sounds like you are after a close physical match to what is fitted. I have not yet had...
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    Possibly a result of: From a magazine article...

    Possibly a result of:

    From a magazine article on the IBM EGA at [here], "Most programs that run on the Monochrome Adapter should run on the EGA/Monochrome Display combination with no problems....
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    To determine the range of ROM's that would work...

    To determine the range of ROM's that would work with it, a circuit digram would be required, or a pointer to a web page that has the information.


    Please create a separate thread for that,...
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    And perform the same experiment that I did in...

    And perform the same experiment that I did in post #9 ?


    What I use is shown at [here] - two IC hooks (supplied with wire) that I have joined.
    To take a pin low, the second hook is connected to...
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    Yes, but there are other possibilities too. E.g....

    Yes, but there are other possibilities too.
    E.g.
    * 666 simply represents the devilish amount of sugar that goes into pink donuts these days.
    * Maybe the '6' key on his keyboard sometimes sticks a...
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    First, there are no guarantees. Software like the...

    First, there are no guarantees. Software like the Supersoft ROM diagnostics are tools. You end up with possibilities and associated probabilities.

    Was your motherboard working, then one day,...
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    From what I see on eBay, you received both a ROM...

    From what I see on eBay, you received both a ROM and an adapter.

    I was expecting the adapter to be the one advertised at [here], but the one you were supplied with looks slightly different....
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    U36 8255 PARITY DETECTED...

    U36 8255 PARITY DETECTED
    ---------------------------

    The '8255 parity detected' test is described on "Page 20" of the manual for the SuperSoft/Landmark diagnostics. Refer to the diagram [here]....
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    What does Ruud's diagnostic ROM report ? You...

    What does Ruud's diagnostic ROM report ?

    You can get it from [here].
  21. Replies
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    Other considerations: * Does the motherboard...

    One can also throw out that original IBM mainboard and can put in one of the rare Pentium II/III or AMD K6-2/3 Baby-AT-mainboards into the 51xx case. That fits well. Then you have up to let's say...
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    Some later motherboards support only one...

    Some later motherboards support only one floppy/diskette drive. And some of those may require the use of an untwisted cable.

    Refer to the motherboard's user manual. If you do not have that, then...
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    Welcome to these forums. Yes, per the...

    Welcome to these forums.


    Yes, per the information at [here], 10 MHz is expected to work.


    If this is a relabeling scenario, I wonder if the chip is even a 287. Imagine someone discovering...
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    Do you see the same symptom when the diskette...

    Do you see the same symptom when the diskette drive is operated within the 410CDT itself (i.e. ejected from its external case, then substituted for the CD-ROM drive) ?
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    I have a 430CDT. The 430CDT will be close in many...

    I have a 430CDT. The 430CDT will be close in many aspects to your 410CDT.

    There is nothing special that I need to operate the external diskette drive. I do not use Toshiba DOS nor the Toshiba...
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