Corsair 1GB 184 DIMM PC3200 ECC DDR RAM  (CM72SD1024RLP-3200) Error Checking and Correcting (ECC) for Maximum Memory Reliability Registered Synchronous Double Data Rate SDRAM Serial Presence Detect (SPD) EEPROM provides Automatic Memory Configuration DDR PC3200 1GB ECC 184 DIMM registered 64Mx8 DRAMs Lifetime Warranty!