First post, by Chadti99
So I discovered that if I use the BIOS from a Biostar 8443 in a Gigabyte GA486AM it works quite well and enables Bus Mastering for PCI, perfect for a Rendition Verite and Vquake. I assume it works almost without issue as both motherboards use the UMC chipset.
One problem however is that it won't enable an IRQ for a VGA adapter, which prevents me from using a Riva 128. I have the hardware to read and write the BIOS EEPROM's and was curious if anyone could give any pointers on how to try modding either the original GA486AM bios to enable Bus Mastering or mod the 8443 Bios to assign a VGA IRQ? I think the former might be easier.
Also curious if either could be modded to support larger hard drives?
Thanks for any help!