Axiom 8GB DDR2-667 ECC RDIMM Kit (2 x 4GB) for IBM # 45238 GB (1 x 8 GB)DDR2 SDRAM667 MHz DDR2-667/PC2-5300ECCRegistered240-pi... 4523-AX - Corporate Armor
4GB 2 X 2GB PC2-5300F 667MHz 240 pin DDR2 SDRAM ECC Fully Buffered FB DIMM Server Low Power Memory for HP Workstation XW8600 (PARTS-QUICK BRAND). Equivalent to HP Part Numbers: 397413-B21, 442823-B21,