The memory has been recognized by the HP625 easily. Installed were 2GB memory. After installation of the memory bar 6GB now available. Part of memory is used as a shared memory graphics chip from a GB I as RamDisk (AMD RamDisk Freeware) established that serves as the browser cache and temporary folder. Even without SSD is an acceleration felt by requiring less outsourced. Under Windows Vista, 7, 8 one should calculate the performance index re after installation: Control Panel \ All Control Panel Items \ Performance Information and Tools, or via My Computer / Properties.