Intel D946GZ Essential Series D946 Desktop Board, uATX, DDR2 667, Intel Graphics, 800MHz FSB, LGA775, Retail Motherboard Intel 946GZ Chipset Support for an Intel Core2Duo Processor in an LGA775 socket with an 1066 or 800MHz system bus; Intel Pentium D and 4 Processor in an LGA775 socket with an 800 or 533 MHz system bus; Intel Celeron D Processor in an LGA775 socket with an 533Mhz bus Two 240-pin DDR2 SDRAM DIMM sockets Support for DDR2 667 or DDR2 533 MHz DIMMs Support for up to 4 GB of system memory