PART NUMBER - GR400D64L3/512; MODULE TYPE - DDR SDRAM DIMM; MODULE DENSITY - 512 mb; MODULE DATA WIDTH - 64; DRAM CHIP ORAGNIZATION - 32M x 8; NUMBER OF DRAM CHIPS - 16; NUMBER OF MODULE RANKS - 2; NUMBER OF MODULE SIDES - 2; PIN COUNT - 184 pin; SUPPL......