I just bought a motherboard/CPU combo from Fry's Outpost.com. The motherboard is the ECS PT800CE-A and the CPU an Intel P4 3.2 Ghz. The problem is this: the system will display the initial post information, display the following error message and then shuts off. Since I can't get any further than that there is no operating system installed, but I have a 80GB Western Digital hard drive on the master controller and using cable select. There is a DVD/CDR-CDRW drive attached to the secondary controller and set as a master drive. This is the error: "cmos checksum error - defaults loaded warning cpu has been changed or cpu ratio changed fail please re-enter cpu settings in the cmos setup and remember to save before quit" "f1 to continue or del to enter setup" I don't have time to configure the CMOS before the system shuts off. Any help would be greatly appreciated. I've never had this kind of problem before and I build and upgrade computers all the time.