Specifications apu fm2 socket amd a series processors amd athlon series processors please refer cpu support list on gigabyte website for more information chipset amd a88x memory 2 x 15v ddr3 dimm sockets supporting up to 64 gb of system memory due to a windows 32 bit operating system limitation when more than 4 gb of physical memory is installed the actual memory size displayed will be less than the size of the physical memory installed the maximum 64 gb of system memory can