Compaq ProLiant BL680c G5 can be upgraded to a maximum memory of
128.0 GB , this system has 16 sockets (8 banks of 2) to install
Memory and comes already installed with 2.0 GB / 4.0 GB (removable) of standard Memory. Compaq ProLiant BL680c G5 takes PC2-5300 Fully Buffered ECC DDR2 SDRAM FBDIMMs. Supports Dual or Quad Channel DDR2. . You may choose the following Memory Upgrades.