Works with the following:

Intel Core 2 Duo processor in an LGA775 socket with a 1066 or 800 Mhz system bus
Intel Pentium D processor in an LGA775 socket with 800 or 533 Mhz system bus
Intel Pentium 4 processor in an LGA775 socket with an 800 or 533 Mhz system bus
Intel Celeron D processor in an LGA775 socket with a 533 Mhz system bus

Supported OS: Win XP(Pro, HE & MC)/2000