I have a KT7-A RAID motherboard, an AMD Athlon 1.2 Ghz Thunderbird, Industry Standard PC-133 SDRAM, BIOS version 6.0 PG...... Dont think I stated my problem correctly. I have to clear the CMOS to get the computer to boot up at all. After I go into the BIOS setup and save the CMOS, the computer refuses to boot up again until I clear the CMOS again. I checked a website and it told me to check the processor speed setting. When I looked at the processor speed, it was set to 500 MHz and gave me the option to change it by selecting the proper speed from a list. In this list there are 2 selections for 1200 MHz. Which one do I choose or does it matter?... There are also 2 selections for 1000 MHz if that matters.