Toshiba Satellite Pro S300L PSSD1C-01W018 Users Manual Canada; English - Page 61

Hardware, Utilities and Options Memory Memory slots Video RAM 512, 1,024 or 2,048MB memory modules can be installed in the computer's two memory slots for a maximum of 4,096MB system memory. This computer can be equipped with memory modules of a maximum size of 4,096MB. The actual amount of useable system memory will be less than the installed memory modules. The memory in a computer's graphics adaptor, used to store the image displayed on a bitmap display. The amount of Video RAM available is dependent on the computer's system memory. Start -> Control Panel -> Appearance and Personalization -> Personalization -> Display Settings. The amount of Video RAM can be verified by clicking the Advanced Settings... button in the Display Settings window. If your computer is configured with more than 3 GB memory, the memory might be displayed as approximately 3 GB only (depending on the computer's hardware specifications). This is correct because the operating system usually displays the available memory instead of the physical memory (RAM) built into the computer. Various system components (like the video adapter's GPU and PCI devices like Wireless LAN, etc.) require their own memory space. Since a 32-bit operating system cannot address more than 4 GB of memory, these system resources overlap the physical memory. It is a technical limitation that the overlapped memory is not available to the operating system. Even though some tools might display the actual physical memory built into your computer, the memory available to the operating system will still be approximately 3 GB only. Legal Footnote (Memory (Main System))*3 For more information regarding Memory (Main System), please refer to the Legal Footnotes section in Appendix G or click the *3 above. User's Manual 3-2