Toshiba Portege M780 PPM78C-007006 Users Manual Canada; English - Page 58
Memory, Legal Footnote Memory Main System, Module slot, Video RAM, Start, Control Panel
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Hardware, Utilities and Options Memory Module slot Video RAM 1GB, 2GB or 4GB memory modules can be installed in the computer's two memory slots for a maximum of 8GB system memory. This computer can be equipped with memory modules of a maximum size of 8GB. The actual amount of useable system memory will be less than the installed memory modules. The memory in a computer's graphic adaptor, used to store the image displayed on a bitmap display. Start -> Control Panel -> Appearance and Personalization -> Display -> Adjust resolution. The amount of Video RAM can be verified by clicking the Advanced Settings button in the Screen Resolution window. The amount of Total Available Graphics memory will vary be between 1 and 2 MB depending upon system configuration. 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)) For more information regarding Memory (Main System), please refer to the Legal Footnotes section in Appendix H. User's Manual 3-2