BIOS for STMicroelectronics KYRO \ VOGONS

BIOS for STMicroelectronics KYRO

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First post, by Martes

Posted on 2024-09-18, 04:28

Martes Offline

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Posts: 14
Joined: 2024-08-04, 08:15

Hi,

I recently got 3D PROPHET 4000XT 64MB (STMicroelectronics KYRO) card, unfortunately not working. It is visible as device but no output.
So I would like to try re-flash a bios but I cannot find it anywhere.

Does anybody have this card? And could you please provide a bios?
Thank you very much.

Reply 1 of 2, by soggi

Posted on 2024-09-19, 01:40

soggi Offline

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Location: Pogotopia

Somewhere I have a collection of KYRO BIOSes...until now they didn't make it to my PowerVR page (-> https://soggi.org/video-cards/powervr.htm) where the PowerVR KYRO / KYRO II BIOS updates will be put on some time in the future... I did a fast search then.

Hercules itself didn't offer any BIOS update on their FTP f.e., but there are reference BIOSes from PowerVR. Version 1.02.00.0029 is available here: https://web.archive.org/web/20050206131512/ht … =downloads#bios.

When you flash the BIOS, backup the old one which you want to replace - just in case!

kind regards
soggi

Vintage BIOSes, firmware, drivers, tools, manuals and (3dfx) game patches -> soggi's BIOS & Firmware Page

soggi.org on Twitter - inactive at the moment

Reply 2 of 2, by rcarkk

Posted on 2025-04-25, 12:09

rcarkk Offline

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Posts: 190
Joined: 2018-08-16, 19:03

soggi wrote on 2024-09-19, 01:40:
Somewhere I have a collection of KYRO BIOSes...until now they didn't make it to my PowerVR page (-> https://soggi.org/video-card […]
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Somewhere I have a collection of KYRO BIOSes...until now they didn't make it to my PowerVR page (-> https://soggi.org/video-cards/powervr.htm) where the PowerVR KYRO / KYRO II BIOS updates will be put on some time in the future... I did a fast search then.

Hercules itself didn't offer any BIOS update on their FTP f.e., but there are reference BIOSes from PowerVR. Version 1.02.00.0029 is available here: https://web.archive.org/web/20050206131512/ht … =downloads#bios.

When you flash the BIOS, backup the old one which you want to replace - just in case!

kind regards
soggi

Hello. Is it safe to apply a reference bios on a 4000 XT card? I have a working 4000 XT 32MB AGP and another 4000 XT 32MB AGP which isn´t providing signal to the monitor. I have changed the 3 1000uF 6.3v cap, they were bulging and have lower than half the capacitance. I changed the caps, before trying it, but no signal. Can this be corrupted vbios, or the other 9 small 22uF 10v capacitors are possibly wrong to?

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