Re: CGA game on option ROM

Posted on 2019-06-02, 08:28

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Indeed good question, that would speed the debugging up. PCem doesnt support this as far as I know, its only possible to implement the XT-IDE. I have to Lo-tech ISA ROM board, but this doesnt work as expected. As I need the ROM on the ethernet card to boot with XT-IDE the best option for me is …

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Re: CGA game on option ROM

Posted on 2019-06-02, 07:55

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Strange..just tried and it works for me 😕 Anyway, again as ZIP. Filename jb.zip File size 47.06 KiB Downloads 81 downloads

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Re: Story about C386-33 and me

Posted on 2019-06-01, 23:31

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Incredibly good work you made there....! And the board is also very nice. How many hours did you spend on this..?

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Re: Bought these (retro) hardware today

Posted on 2019-06-01, 23:24

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Going off the number of slots I'd say Zenith Data Systems Z-386. I found the carcass of one in a junk pile 15 years ago and I quite firmly recall it had 10 slots and an AT Jack in the back, one of the reason I did not pick it up (already had too many projects at that time with missing proprietary …

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CGA game on option ROM

Posted on 2019-06-01, 23:16

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

After my success with the IBM ROM Basic... https://www.vogons.org/viewtopic.php?f=46&t=67340 ...I made another ROM. This time it contains a CGA game I played for hours when I was young ;-) I had this game as copy of a copy-protected 360kb-floppy. This floppy needed to be booted, therefore no DOS- …

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Re: Bought these (retro) hardware today

Posted on 2019-06-01, 18:40

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

And my delivery today...again scrap lot. Best part: Not enough ISA-Slots...this one has..1..2..3....10!!! Not enough RAM for your 386...this one has...1...2..3...16 SIMM Sockets! Is it running..? YES! Was this a good "scrap"-Lot? Yes! Unfortunately this monster doesnt fit in a standard case. Anybody …

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Re: Bought these (retro) hardware today

Posted on 2019-06-01, 18:38

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

^^lol whats this? 😁 Also nice IBM!

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Re: PC-XT mainboard PETER-10F - BIOS, anyone?

Posted on 2019-05-31, 20:20

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Filename XT-Faraday PAC.JPG File size 832.87 KiB Views 521 views Filename XT-Faraday PAC.rar File size 839.23 KiB Downloads 64 downloads Quite sure any XT-BIOS will work with this Chipset...

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Re: 286 CMOS battery replacement

Posted on 2019-05-31, 20:18

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Most likely the 4-Pin header on the bottom right of your 1st photo is for the external battery. Check with a mutlimeter if you are unsure. No need to solder anything.

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IBM ROM Basic - option ROM for PC clones

Posted on 2019-05-31, 17:01

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This was my challenge for today. I liked to get the IBM Basic ROM to run in a PC clone. Was not that easy because the IBM ROM is not designed to run stand alone as an option ROM. Therefore I added a "loader" to add the option ROM "55 AA" header and to connect the INT 18 to it. Very helpful to get …

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Re: Identify Dual Slot 1 Mainboard

Posted on 2019-05-29, 20:12

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Perfect!! 😀

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Re: Identify Dual Slot 1 Mainboard

Posted on 2019-05-29, 20:02

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

WOW thanks luckybob! :cool: PC Chips M720. Doesnt seem to be worth to spend more time with. Already asked what this slot may be used for. Now I also found a BIOS file that has only 471 different bytes to mine..! I will try that one and if it doenst work..away with it :dead: PS: Did you had a chance …

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Identify Dual Slot 1 Mainboard

Posted on 2019-05-29, 18:54

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, is anybody able to identify this board? Looks very nice but it doesnt run. Maybe its a faulty BIOS, but I dont know where to look for an image? I add mine for reference, but maybe its bad...Thanks! Filename IMG_7022r.jpg File size 1.75 MiB Views 354 views Filename Dualp2-17008.rar File size 117 …

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Re: FOREX 386 Cache board doesn't post

Posted on 2019-05-28, 17:49

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Put a Supersoft ROM on the W27C512 and connect a speaker 😉

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Re: 80286 BIOS image collection

Posted on 2019-05-25, 19:02

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

#33 Manufacturer/Identifier: Chipset: Filename 286-NEAT_Neat012.rar File size 1.76 MiB Downloads 157 downloads Filename 286-NEAT_Neat012.JPG File size 1.75 MiB Views 3771 views

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Re: 80286 BIOS image collection

Posted on 2019-05-25, 19:00

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

#33 Manufacturer/Identifier: Chipset: Filename 286-VLSI-002350.rar File size 3.53 MiB Downloads 174 downloads Filename 286-VLSI-002350.JPG File size 1.76 MiB Views 3771 views

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Re: 80286 BIOS image collection

Posted on 2019-05-25, 18:58

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

#32 Manufacturer/Identifier: Chipset: Filename 286-TACT-320548.rar File size 1.74 MiB Downloads 140 downloads Filename 286-TACT-320548.jpg File size 1.75 MiB Views 3772 views

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Re: 80286 BIOS image collection

Posted on 2019-05-25, 18:57

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

#31 Manufacturer/Identifier: Chipset: Filename 286-Chips AMI78384.rar File size 1.76 MiB Downloads 149 downloads Filename 286-Chips AMI78384.JPG File size 1.73 MiB Views 3772 views

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Re: Suntac 80286 Mainboards

Posted on 2019-05-20, 18:55

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As for you new mobo, I can see A LOT of corrosion near the ISA slots, the '245, keyboard socket and the RTC. There's no way data signals D0-D7 are still working on this thing. Considering the 008 chip state as well I'd say this is parts donor board at this point. I mean, it coudl be repaired, but …

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Re: 80386 BIOS image collection

Posted on 2019-05-19, 19:35

by

by Predator99

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

#32 Manufacturer/Identifier: Chipset: BIOS: ID string: Filename 386-BIG AMI 896818.JPG File size 1.74 MiB Views 4085 views Filename 386-BIG AMI 896818b.JPG File size 1.66 MiB Views 4085 views Filename 386-BIG AMI 896818.rar File size 1.77 MiB Downloads 125 downloads

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