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Thread: Microscience HH-725A in 5160 Clone need help on error codes

  1. #11

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    Quote Originally Posted by Chuck(G) View Post
    You can clobber the partition table if you can run DEBUG from a DOS prompt...

    ...Basically, this wipes out your master partition table, so FDISK thinks it's working with a new drive.
    I have a nice, small Trojan executable that does just that in one fell swoop.

    I might have sent you this many years ago so you could examine it and give me the actual mechanism it utilizes.
    If you're looking for DS/DD or DS/HD 3" or 5" floppy disks, PM me. I've got some new, used, and factory over-labeled disks for sale.

    There is a crack in everything. That's how the light gets in. -- Leonard Cohen
    ☞ Time flies like an arrow; fruit flies like a banana.

  2. #12

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    There is a utility from Samsung i believe called clearhdd.exe i've used it before and it can wipe the primary or secondary disk, Or there is WipeDisk from Lo-Tech that will clear the primary disk.

  3. #13
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    Quote Originally Posted by Stone View Post
    I have a nice, small Trojan executable that does just that in one fell swoop.

    I might have sent you this many years ago so you could examine it and give me the actual mechanism it utilizes.
    Maybe--I don't recall. But there were a couple of early trojans that did set about clobbering the hard disk after a time.

  4. #14

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    This one is quite simple:

    You run it and it deletes the first partition it encounters.

    You run it again and it deletes the first partition it encounters (which was the second partition before it deleted the first).

    I think it was a nasty prank that some kids got into during the late 1980s.
    If you're looking for DS/DD or DS/HD 3" or 5" floppy disks, PM me. I've got some new, used, and factory over-labeled disks for sale.

    There is a crack in everything. That's how the light gets in. -- Leonard Cohen
    ☞ Time flies like an arrow; fruit flies like a banana.

  5. #15

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    I think LLF might be best.
    My 2.1 Dos Disk dose not have debug on it. I'll download a full version and give it a try.
    oh wait, a thought, what version of DOS works best with XT's 640k ram, 360k,1.2m 5.25" FD's, and this 1/2 height HD?
    I'll let the drive 'heat up' for about 10 minutes before I attempt a LLF
    Again, thanks everyone for all the informative and helpful replies!
    Atari Falcon 030/FX-1 CF & SD 14mb, Atari MSTE, Atari PS3000, STACY 4 /w UltraSatan SD, 4160STE-CosmosEX, Atari PC1-PCH204-2xPCF-551-PCM124, 1040STFM, 1040STF, 520ST(4mb, 16mhz), 400-48K & std kybrd, 800, 600XL, 800XL, 1200XL(256 Rambo,svideo,31-OS,APE upgrade), 130XE, XEGS, matching peripherals for all,
    Apple llGS ROM 3-4mb-CF HD, C64, 4+, IBM XT 5160, IT 99/4+, TRS80-4P, Amiga 500,

  6. #16
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    DOS 3.3 is my choice for the class of machine you describe. Chuck(G)'s concern that your hard drive controller doesn't have a low level format utility in it's BIOS is well founded. If that is the case, there is an old utility called SpeedStor that should do the trick.
    Last edited by fatwizard; January 9th, 2018 at 10:00 PM.

  7. #17

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    After doing some reading Dos3.3 sounds like best choice. I agree. I will pull the HD card and see what model it is and post here to see you all might know if it has a BIOS utility. Where can I get a complete copy of all the disks for 3.3, or any dos. I see some places that have dos boot disks. Those just have 4 or 5 files on them. I know dos disk are full of programs, and usually have 2,3,4 or more disks.
    Thanks
    Atari Falcon 030/FX-1 CF & SD 14mb, Atari MSTE, Atari PS3000, STACY 4 /w UltraSatan SD, 4160STE-CosmosEX, Atari PC1-PCH204-2xPCF-551-PCM124, 1040STFM, 1040STF, 520ST(4mb, 16mhz), 400-48K & std kybrd, 800, 600XL, 800XL, 1200XL(256 Rambo,svideo,31-OS,APE upgrade), 130XE, XEGS, matching peripherals for all,
    Apple llGS ROM 3-4mb-CF HD, C64, 4+, IBM XT 5160, IT 99/4+, TRS80-4P, Amiga 500,

  8. #18
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    You can get images of MS-DOS disks here.

    https://winworldpc.com/product/ms-dos/1x

  9. #19

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    The HD controller id a DTC Data Technologies Corp 5150BX 10-00476 rev E1. It is a long card. It has 2 custom IC's one labeled KIM11 on its white sticker, the other is an EEProm, with a hand written BXD6.
    here is one on ebay
    https://www.ebay.com/itm/Data-techno...-/181848948321

    Anyone know if this card has a bios on it? And how to get to it?

    fatwizard, thx for the dos link! I have a complete IBM 3.3dos manual with 3 bad disks. your link only had 2 of the three disks. It was missing the utilities disk. Any idea where to get that one?
    Atari Falcon 030/FX-1 CF & SD 14mb, Atari MSTE, Atari PS3000, STACY 4 /w UltraSatan SD, 4160STE-CosmosEX, Atari PC1-PCH204-2xPCF-551-PCM124, 1040STFM, 1040STF, 520ST(4mb, 16mhz), 400-48K & std kybrd, 800, 600XL, 800XL, 1200XL(256 Rambo,svideo,31-OS,APE upgrade), 130XE, XEGS, matching peripherals for all,
    Apple llGS ROM 3-4mb-CF HD, C64, 4+, IBM XT 5160, IT 99/4+, TRS80-4P, Amiga 500,

  10. #20
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    Quote Originally Posted by KLund1 View Post
    Anyone know if this card has a bios on it?
    The BXD06 labelled chip is the BIOS ROM. There is a copy of it at [here].

    Quote Originally Posted by KLund1 View Post
    And how to get to it?
    What do you mean ?

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