VOGONS


Reply 20 of 49, by Doornkaat

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The tool I seem to remember asks what file to flash when you run it.
I'm either confusing memories or it's another tool that I used.

I haven't got a PC at the moment to check the tool and retrace what I did when I used it so I don't think I can help you any further right now.

Reply 21 of 49, by kitten.may.cry

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MASSIVE UPDATE: Booting from 98SE did something different. It now says "There is no build information for the selected hardware. Continue(y/n)?

Spoiler

8hCG24D.jpg

If anything else, I'm now left with a Voodoo4 that has no BIOS.

At least, it's no longer flashed for MAC, that's a win for me.

Cursor is just blinking, and nothing is going on.

No reads from the floppy drive.

Reply 22 of 49, by Doornkaat

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B:\DICK404>flash 4500dvi1.rom

😄
Looking good so far.
Edit: Whoops, missed your edit.
Leave it running for a bit. If nothing happens, reboot and retry?
Try renaming the new VGA BIOS file to something shorter like V4500.rom or similar?

Last edited by Doornkaat on 2022-05-19, 15:42. Edited 1 time in total.

Reply 23 of 49, by kitten.may.cry

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Doornkaat wrote on 2022-05-19, 15:39:

B:\DICK404>flash 4500dvi1.rom

😄
Looking good so far.

B drive is floppy drive.

System is not frozen, as I can CapsLock check, still responsive.

But it's not doing anything, just cursor blinking.

Reply 25 of 49, by kitten.may.cry

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Doornkaat wrote on 2022-05-19, 15:43:

Whoops, missed your edit.
Leave it running for a bit. If nothing happens, reboot and retry?
Try renaming the new VGA BIOS file to something shorter like V4500.rom or similar?

Shorter BIOS name, got it. So far, nothing.

Been like that for a while, there is no bar indicating progress or anything.

Reply 31 of 49, by kitten.may.cry

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Doornkaat wrote on 2022-05-19, 15:50:
kitten.may.cry wrote on 2022-05-19, 15:50:

Uh oh!

Artifacts on the screen!

😑

I can try flashing a different supported BIOS, would that do anything?

Reply 33 of 49, by kitten.may.cry

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Doornkaat wrote on 2022-05-19, 15:54:

Well, it probably won't hurt.
Most of the time graphical artifacting is a hardware issue though.😐

Are you sure of that?

BRB!!!!

THIS IS GETTING ME SO SAD!!!

Reply 34 of 49, by paradigital

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kitten.may.cry wrote on 2022-05-19, 15:55:
Doornkaat wrote on 2022-05-19, 15:54:

Well, it probably won't hurt.
Most of the time graphical artifacting is a hardware issue though.😐

Are you sure of that?

BRB!!!!

Pretty sure, yes. Depends on what type of artifacting you are seeing and if it’s visible in 2D, 3D or both.

2D artifacting (like wrong characters or checkerboard/stripes) is likely to be bad RAM.

3D sparklies/white/coloured pixels on fringes of 3D objects (or worse, the whole display) is usually bad GPU.

This is the same regardless of vendor or card type usually.

EDIT: Of course you also see these types of artifacting when overclocking, which was usually a sign you needed more volts. Therefore it’s plausible that any issues you are seeing could be down to bad caps causing weak or rippling voltage rails.

Last edited by paradigital on 2022-05-19, 16:04. Edited 1 time in total.

Reply 36 of 49, by paradigital

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kitten.may.cry wrote on 2022-05-19, 16:02:

Definitely stripes.

Likely video RAM then. As I edited above, it could be weak voltage rails to the RAM, you can test this with a multimeter or scope though.

Even worst case is a RAM transplant, not too difficult with hot air rework station.

Reply 37 of 49, by kitten.may.cry

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paradigital wrote on 2022-05-19, 16:05:
kitten.may.cry wrote on 2022-05-19, 16:02:

Definitely stripes.

Likely video RAM then. As I edited above, it could be weak voltage rails to the RAM, you can test this with a multimeter or scope though.

Even worst case is a RAM transplant, not too difficult with hot air rework station.

Could this be caused by clock strap things set in the BIOS I've flashed just now?

Reply 38 of 49, by paradigital

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I’m not aware of differing clock speeds between PC/MAC variants of 3Dfx cards, but it couldn’t hurt to try lowering the clockspeeds by editing and re-flashing the BIOS.

Reply 39 of 49, by kitten.may.cry

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paradigital wrote on 2022-05-19, 16:11:

I’m not aware of differing clock speeds between PC/MAC variants of 3Dfx cards, but it couldn’t hurt to try lowering the clockspeeds by editing and re-flashing the BIOS.

Memory chips seem to be rated for 166Mhz, I just checked the spreadsheet, but editing is convoluted.