Yes, the K7T Pro2A uses the KT133A chipset, but that's not the cause of the problem. Actually, the K7T Pro2A wasn't a bad motherboard at all. Anandech ran a few servers on it. The KT266A from MSI is a POS however, but not their KT133A.
BTW Doug, using 3 unbuffered sticks of RAM is nothing to...