[font=Arial, sans-serif]When questioning [/font][font=Arial, sans-serif]what kind of RAM do i have[/font][font=Arial, sans-serif], you should examine the specifications such as the type, speed and size of the ram. On Windows, the basic information is displayed in Task Manager but this can be done with tools that give the full information, including the DDR version. On Mac, System Report specifies memory that's currently installed. When upgrading, it is important to know the type of RAM as it must be compatible with the specifications.[/font]