Reply 20 of 35, by Eep386
Apologies if updating this thread ruffles any feathers, but here's a hacked version of that BIOS, which re-enables some hidden features that would otherwise help performance, such as HDD Block Mode, Cache Burst Control and a few others.
I've tested this on my repaired GMB-486UNP v2.2 board, and it seems to work like a charm. After tweaking the formerly-hidden options, the performance is right back to where it was with the AMI BIOS prior to the upgrade. Except now I get early LBA support among a few other niceties. 😁
Life isn't long enough to re-enable every hidden option in every BIOS on every board... 🙁