Intel 945GCLL Socket 775 MicroATX Motherboard Support for an Intel Pentium D Processor in an LGA775 socket with an 800 MHz system bus Support for an Intel Pentium 4 Processor in an LGA775 socket with an 800 or 533 MHz system bus Support for an Intel Celeron D Processor in an LGA775 socket with a 533 MHz system bus Four 240-pin DDR2 SDRAM DIMM sockets Support for DDR2 667, DDR2 533 or DDR2 400 MHz DIMMs