I have a new system built around the Epox 8KHA+ with Athlon XP 1600+ unlocked. This 8KHA+ bios allows a Vcore voltage boost of only 0.1V, which I've heard is not enough for major overclocking. I've been running overclocked with 11.5 multiplier (XP 1800+ speed, not a radical overclock) and the standard 266 FSB for a few days and the system seems rock solid. I'd like to know how far I can increase the multiplier before the Vcore voltage becomes an issue.