I just setup my new K7S5A Pro and XP 1800+ , and was horrified to see that the bios didn't allow for overclocking. I got the latest official bios, and there still was no fsb choice other than 100/133. So I got cheepoman's bios, (latest), but win xp wouldn't install (tried acpi and non acpi installation, they crash at different places). So I'm back to the latest official bios, running at a boring stock speed. Anybody know of any other bios that might allow for better fsb selection AND os installation?