If any of your programs try to writes to F0000hFFFFFh which is where the memery erea is for cach it will cause this error.Why dont you try to go into your Bios by hitting delete or whatever the key is for accessing the Bios and then go to your advanced bios settings and find system bios chacheable and disable it. Do you have a motherboard book.If not I would either get ahold of who you bought it from and get it or bring the computer back and get one from a reputable person.Anyway the motherboard book will help you to get into the bios and help you find what you need.Its worth a shot later Pat S