Compaq Presario 1800EA can be upgraded to a maximum memory of
320 MB , this system has 1 socket to install
Memory and comes already installed with 320 MB = 64 MB (non-removable) + 256 MB (removable) of standard Memory. Compaq Presario 1800EA takes PC100 SDRAM SODIMMs . You may choose the following Memory Upgrades.