I have a celeron 366 slot 1, diamond v770 non-ultra, 64 megs of pc 100 ram, and windows 98 with an abit bh6 motherboard. I was trying to overclock my cpu by setting the multiplier to 5.5x and i tried 75,83 and 100 fbs and no luck. Whenever i try overclocking right after it displays the correct overclock speed i get a message saying computer is unworkable or has been changed and then am told to hit F1 to continue or delete to enter bios. When i enter the bios the mhz is set at 266. Just wondering if anyone has any ideas.