User's Manual for English Edition
Page 94
... as external power supply, battery pack, etc.) before removing the compartment cover. Purchase RAM modules from authorized retailers of this Notebook PC to install a RAM module into your Notebook PC: WARNING! Installing a Random-access Memory module (on RAM module upgrades for your Notebook PC. The following steps show you how to ensure maximum compatibility...
... as external power supply, battery pack, etc.) before removing the compartment cover. Purchase RAM modules from authorized retailers of this Notebook PC to install a RAM module into your Notebook PC: WARNING! Installing a Random-access Memory module (on RAM module upgrades for your Notebook PC. The following steps show you how to ensure maximum compatibility...