Adrian has just posted the new Rev. 7.5 BIOS Optimization Guide. With that, the new Rev. 7.5 BIOS Optimization Guide covers a total of 183 BIOS options. This is really worth checking out, since it's the most comprehensive and up-to-date guide that I know of.

Changes and additions: - Graphic Win Size
- Post Write Combine
- SDRAM 1T Command
- SDRAM 1T Command Control
- SDRAM Burst Length
- SDRAM Burst Length
- SDRAM Command Rate
- SuperStability Mode
- AGP Aperture Size
- APIC Function
- PCI Chaining
- PCI Target Latency RojakPot's BIOS Optimization Guide 7.5