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

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?

I think it's very unlikely that the BIOS is the reason your second card doesn't work. First I would backup the BIOS from the working card and flash it to the not working. If this doesn't work you can still try to flash the latest reference BIOS.

kind regards
soggi