IBM 39M5797 COMP 8GB DDR2-667MHZ ECC 1.8V DR FBDIMMAddOn FACTORY ORIGINAL 8GB (2x4GB) DDR2 667MHZ DR DIMM F IBM 8GB (2 x 4GB) DDR2 SDRAM 667MHz DDR2 667 PC2 5300 ECC Chipkill Fully Buffered 240 pin DIMM VPN: 39M5797 AM SKU: RSC765419 UPC: 821455088128 DIMM 8 GB bar will run multiple applications together and enhance your computer's performance Up to 667 MHz memory speed with Fully Buffered signal to manage your routine softwares with pace and accuracy 240 pin pin DDR2 SDRAM operates at up to 400 MHz