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Reply 21 of 29, by Madao

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kixs wrote on 2022-11-23, 22:57:
I know about NSSI... here is the dump. It's 32KB only and I hope you can use it somehow. […]
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Madao wrote on 2022-11-22, 18:33:
No EPROM-Programmer as TL866CS or similar ? […]
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kixs wrote on 2022-11-22, 17:52:

I have the card. How to save both ROMs via computer?

No EPROM-Programmer as TL866CS or similar ?

Other Solution : NSSI could dump VGA ROM
https://www.navsoft.cz/products.htm

It dump to file with size 32kb . (probably , it dump to file with 64kb size . )

Important: Your card mus look same as my with DIP DRAM, not ZIP-VRAM.

I know about NSSI... here is the dump. It's 32KB only and I hope you can use it somehow.

This is my card:
ZWyijVrm.jpg

I said: dump looks good. checksum is good and 32kb size is common.
But my card refused to starting. It show with MACH32 VRAM white pictures with blinking cursor. Their dump has size of 64kb

Unbenannt.png
Filename
Unbenannt.png
File size
34.64 KiB
Views
691 views
File license
Fair use/fair dealing exception

Now i know why: really 64kb ROM dump is required.
Only one solution: pull rom and read him with programmer.

Sad.. 🙁

Reply 25 of 29, by pvlst

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I have these two Mach32 ISA cards, apparently they're not the exact same type as yours. But one of them seems to use DRAM. I suppose I can dump the bios from either of these using TL866II. Would that help you?

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Reply 26 of 29, by Madao

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Upper card... you can dump ROM. (ROM Dump by TL866 and consorte, NSSI-Dump or other solution -> doesn't work, because we need shadowed memory area of ROM)
But i don't believe, that it works. It is worth to try.

Thanks
Matt

Reply 27 of 29, by pvlst

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Ok, I dumped both ROM chips of the first one, see the attached zip file. The ROM chips are Microchip 27C256.

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Reply 28 of 29, by Madao

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Thanks..

Sad, it works not correct. (white pic, same as with ROM from VRAM card..)

I think, i trow ati mach32 dram soon in e-waste.. if i don't find excat this ROM...

regards
matt

Reply 29 of 29, by Madao

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I have cleaned up and i found this card (i have forgotten to trowing away)

A chance 😀

I ask again after ROM for ATI Mach 32 DRAM ISA aka Graphics Ultra+ ISA .
But: ROM must dumped with programmer and not NSSI or similar (because half is shadowed )

Thanks and greetings
matt