Other than the ram type, one of my G-200 AGP is exact same model 834-00 Rev A. Exact same layout. Mine has four Fujitsu chips 81F161622B-FN. It is a 2x 3.3v AGP card...
sorry no clue why no rams shows but am surprised those tiny SMT caps are anywhere near 80uF, considering C3, C4, etc are much larger and are 10uF if I read mine correctly (tiny print, used a magnifier).
They are filters for the power to those chips and would be trying to suppress the high frequency ripple which from the ram speed be max in the 140Mhz range......so even a 0.1uF would work iirc
Have you tried it in more than one 2x/4x board ?

Horun wrote on 2023-06-24, 00:57:

Other than the ram type, one of my G-200 AGP is exact same model 834-00 Rev A. Exact same layout. Mine has four Fujitsu chips 81 […]
Show full quote

Other than the ram type, one of my G-200 AGP is exact same model 834-00 Rev A. Exact same layout. Mine has four Fujitsu chips 81F161622B-FN. It is a 2x 3.3v AGP card...
sorry no clue why no rams shows but am surprised those tiny SMT caps are anywhere near 80uF, considering C3, C4, etc are much larger and are 10uF if I read mine correctly (tiny print, used a magnifier).
They are filters for the power to those chips and would be trying to suppress the high frequency ripple which from the ram speed be max in the 140Mhz range......so even a 0.1uF would work iirc
Have you tried it in more than one 2x/4x board ?

As of today, 3 different boards (440BX; VIA VT82C693A and another VIA or ALI - SS7 board) + a G4 to be sure it isn't an Apple BIOS issue.
I could desolder all those smt caps and measure them; I have another 98x 0.1µF 50V.

Thanks!

This sounds like a matrox pins issue ? ie corrupted/lost data in an eeprom.
solution is reprogramming.
Likely nothing to do with the actual hardware.

https://web.archive.org/web/20040110103309/ht … .pl/gbm/matrox/

Re: In need of PINS for Matrox G200 SD PCI 8mb

weedeewee wrote on 2023-06-24, 04:11:

This sounds like a matrox pins issue ? ie corrupted/lost data in an eeprom. solution is reprogramming. Likely nothing to do with […]
Show full quote

This sounds like a matrox pins issue ? ie corrupted/lost data in an eeprom.
solution is reprogramming.
Likely nothing to do with the actual hardware.

https://web.archive.org/web/20040110103309/ht … .pl/gbm/matrox/

Re: In need of PINS for Matrox G200 SD PCI 8mb

Had NO idea it existed. Good to learn.
I can't locate the BIOS on the board, not the usual bold PLCC you desolder.

Thanks mate!

Edit: maybe it's the little sop-8 near the unpopulated MOSFET?

Yes think that it it. A 32k serial eeprom chip iirc (diff than typical parallel rom dip chips used on many vga cards)

Horun wrote on 2023-06-24, 13:40:

Yes think that it it. A 32k serial eeprom chip iirc (diff than typical parallel rom dip chips used on many vga cards)

I'll probably sound silly but, can't I just deoslder and reprogram that chip?
Dind't delve yet into the Biosprog utility, and I'll eventually do a DOS run because it's more "retro". 😀

weedeewee wrote on 2023-06-24, 04:11:

This sounds like a matrox pins issue ? ie corrupted/lost data in an eeprom. solution is reprogramming. Likely nothing to do with […]
Show full quote

This sounds like a matrox pins issue ? ie corrupted/lost data in an eeprom.
solution is reprogramming.
Likely nothing to do with the actual hardware.

https://web.archive.org/web/20040110103309/ht … .pl/gbm/matrox/

Re: In need of PINS for Matrox G200 SD PCI 8mb

Success!!
Working perfectly + tested briefly in W98 and drivers load just fine.

Took note of this G100/200/400 problem.
I actually wrote down to check BIOS always 😀

Downloaded BIOS from vgamuseum + BIOSPROG (just does everything no hassles).

Nexxen wrote on 2023-06-24, 13:05:

Had NO idea it existed. Good to learn.

Neither did I until I read about it in some thread on this forum 😀

Good to hear you've got it working.
Enjoy & have a good day.

That is great ! Yes thanks weedeewee ! Had seen that post a long while back but forgot about it.
For those old G200 w/0 DVI (they call it FP) and w/o TVO bios 1.3 is the newest.

I remember buying my first new videocard, a matrox millenium I , for about 20 000 Bfr, ~€500 back then, ~€1 000 currently.
Still like the support it had in windows, X, OS2. 'twere different times back then.

Horun wrote on 2023-06-25, 14:49:

That is great ! Yes thanks weedeewee ! Had seen that post a long while back but forgot about it.
For those old G200 w/0 DVI (they call it FP) and w/o TVO bios 1.3 is the newest.

The flash .exe found ver 1.3 and issued a warning.
After running it found:
- BIOS file version is the same as the currentversion. Do you still want to update?
- checksum invalid
- PINS chesksum OK

- Success - changed 192 bytes

It was indeed in need of a reflash.
The program does everything by itself, save old, check old, new, flash, report... you just need to run it. The programmer knew he had to make it easy 🤣