Disabling apic i think is the setting in bios well i disabled it and i need to point out so far i'm stable at 11x200 with no mods even tho i did do a chipset volt mod it ended up not working so i tried this now i'm stable i need to stress that diabling it will or for me did help stabilitty even with ****ty samsung ram but when you disable you will have to restore xp to get it to load by booting from the cd as of now i'm stable and i thank god for seeing this in an abit forum and thought i should point it out i'm shure now i can go even higher its like better then anything else i have done