DDR3: Support for DDR3 1066/800 MHz memory modules 2 x 1.5V DDR3 DIMM sockets supporting up to 4 GB of system memory Dual channel memory architecture DDR2: Support for DDR2 1066/800/667 MHz memory modules 4 x 1.8V DDR2 DIMM sockets supporting up to 8 GB of system memory Dual channel memory architecture