In September, HP announced that a user can upgrade the HP MediaSmart Server without voiding the warranty. Here’s part of the statement (Full Statement): “Based on customer feedback, HP will now offer a path for consumers to upgrade the memory on the HP MediaSmart Server without voiding the hardware warranty. HP customer feedback and research shows that some customers are installing multiple add-ins and/or additional software to the MediaSmart Server, which can lead to a need for additional memory.”

More info: Step-by-step guide