HP 512 MB (1 x 512 MB) DDR2-800 ECC Memory
HP 512MB Memory Module, 0.5 GB, 1 x 0.5 GB, DDR2, 800 MHz
HP 512MB Memory Module. Internal memory: 0.5 GB, Memory layout (modules x size): 1 x 0.5 GB, Internal memory type: DDR2, Memory clock speed: 800 MHz, ECC