Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on Yesterday, 21:54

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

nerdlypleasures blog has a nice piece of advice/warning One word of caution cannot be emphasized enough when dealing with these drives. Do NOT use a low-level formatting program unless that program is specific to your manufacturer and drive. DOS formats at a high level, and you should use that. …

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Re: Searching for old Sony CD Driver

Posted on Yesterday, 21:11

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by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

A SCSI cdwriter drive that needs a specific driver for reading? Dang. Odd, Just leaving this comment to follow the thread. sorry, no idea about the driver.

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on Yesterday, 20:51

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

FYI, off the top of my head, the computers that I have which support an XTA drive are... ie they have a 40 pin connector where a hard drive normally would get connected eventhough many of these machines were shipped with an MFM or RLL drive&controller - Commodore PC10-III - Philips NMS 9100 - …

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on Yesterday, 18:09

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sorry for being a bit vague with the drive identifier. I was more alluding to the command in the newer drives that reports the drive geometry and or amount of sectors as for LBA, and is not some lookup from a BIOS table. Without such a command XT-IDE would need a preconfigured CHS value. But Yes, …

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on Yesterday, 17:24

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sorry for being a bit vague with the drive identifier. I was more alluding to the command in the newer drives that reports the drive geometry and or amount of sectors as for LBA, and is not some lookup from a BIOS table. Without such a command XT-IDE would need a preconfigured CHS value. But Yes, …

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on Yesterday, 15:36

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

it's an early IDE drive. does it matter if it uses mfm or rll encoding in this case since it's connected as an XTA drive and not via an old MFM or RLL controller. I'm wondering if changing the drive geometry after booting could work, though that would likely mean the drive itself is no longer …

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on Yesterday, 11:16

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I doubt you want to try a low level format, but if you want to see it I guess you could Copy code to clipboard 1 debug 2 g c800:5

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Re: Need help with the jumper setup of the ISA Super IO card

Posted on Yesterday, 11:03

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

just going by the ISA pinout & photos JP5 clearly IRQ selection position 8 is connected to IRQ7 position 7 is connected to IRQ5 position 6 is connected to IRQ5 position 5 is connected to position 4 is connected to IRQ3 position 3 is connected to position 2 is connected to IRQ5 position 1 is …

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on Yesterday, 10:35

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

copy con dump.txt D C800:0 2000 Q ^Z <- this means press Control & Z debug dump.bin That didn't quite work, it seemed to have also copied the debug commands into the file and generated a 40k file (perhaps a loop?) Anyway! I tried your original suggestion on FreeDOS, and it just worked first time! …

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on Yesterday, 08:36

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I was so hopeful with this trip to the garage! I tried a typoless version (I think!?) of weeedeewee's suggestion, but the computer freezes after the M command. I tried 640k's debug command, which seemed to work! But... produced another file full of FF (huh!?) I'm also distracted by work atm so I'll …

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Re: Oak VGA 1067162008 - missing BIOS

Posted on Yesterday, 08:11

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

https://www.vgamuseum.info/index.php/cpu/item … 325-oak-oti-067 you might find what you need at section 'download attachments' though you'll have to split it up into an odd & even part.

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on Yesterday, 06:45

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I see 3 jumpers on the card. What do they do? Could this be a similar sort of situation to the jumpers which would restrict larger IDE drives to ~8gb? A 20mb "compatibility mode" of sorts already been answered https://www.vogons.org/viewtopic.php?p=1256141#p1256141 https://www.vogons.org/viewtopic. …

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Re: Please help for pinout of onboard vga connector - Soyo SY-5TS0 / SY-5TS2 / SY-5TS5

Posted on 2024-04-25, 20:06

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by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

multimeter in continuity mode and datasheet for s3trio64v+ page 17, pin 150 vsync, 149 hsync, 168 red, 171 green, 172 blue. no idea what the other vga pins are on the s3 chip. http://www.bitsavers.org/components/s3/DB018-A_Trio64V+_Integrated_Graphics_Video_Accelerator_Jul95.pdf edit: oh yeah and …

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on 2024-04-25, 19:08

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

you made a typo 😀 not once not twice but three times ! Copy code to clipboard 1 debug 2 n px-hdc.bin 3 4 M C800:0 2000 1000:0 5 ^ !!!!!!!!!!!!!!!!!!!!!!! it's an m for mama or mother or majestic ! 6 7 W 1000:0 8 q

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Re: Bought these (retro) hardware today

Posted on 2024-04-25, 17:33

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by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For the PC XT I found an interesting solution, for the video card, I have an 8-bit ISA, which should be a Hercules (or a monochrome one), the connector for the monitor is with 9 pins, unlike VGA monitors that have 15 pins, so to solve I had to find an 8-bit ISA VGA, or a monitor with 9 pin input, …

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on 2024-04-25, 16:58

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

ok maybe Copy code to clipboard 1 debug 2 n px-hdc.bin 3 M C800:0 2000 1000:0 4 W 1000:0 5 q Which DOS are you using ?

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on 2024-04-25, 16:16

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

debug n PX-HDC.BIN RCX 2000 W C800:0 Q the first two bytes should be 0x55 0xAA Thanks weedeewee! That was very helpful. If I do the -d, I see something that looks like a ROM and even a copyright string (picture attached)! But when I do a w (even from scratch verbatim as above), I just get a file …

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on 2024-04-25, 16:12

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

At the moment no ideas aside from it's likely to be something utterly obvious that we're overlooking 😀

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Re: Working XTA (IDE on XT) setup on GLaBIOS

Posted on 2024-04-25, 15:23

by

by weedeewee

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

debug -n PX-HDC.BIN -RCX :2000 -M100 L2000 C800:0 -W -Q I think the dump is wrong. If you do a d c800:0 You should see what the real rom looks like. You also do not have to worry about shadow ram on an XT. remove the M line and do a W C800:0 ergo debug n PX-HDC.BIN RCX 2000 W C800:0 Q the first two …

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2024-04-25, 11:23

by

by weedeewee

in Release Announcements

in Release Announcements

Reballing kit costing more than the mainboard? Just get yourself some balls ! leaded balls, though they'll have to be tiny ;-) They're cheap and plentiful. If I thought there was a decent chance of it working then I might try reballing it by hand :) The pins on that thunderbolt controller are …

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